Time out (5)
'time out?' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for spell that I've seen before include "Period of time - bewitching utterance" , "Short period of time; incantation" , "influence" , "Magic formula - period of time" , "Put letters in right order" .)
This might be a double definition.
'time' is the first definition.
(night is a kind of time)
'out?' is the second definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
(Other definitions for night that I've seen before include "'Red sky at . . . . ., shepherd's delight'" , "Time for turning" , "Sunset to sunrise" , "''Tender is the ...'' (F Scott Fitzgerald)|" , "Period of darkness" .)
'time out' is the definition.
The definition and answer can be both related to time as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
This is all the clue.
(Other definitions for leave that I've seen before include "Soldier's holiday" , "Pull out" , "Something taken by those withdrawing" , "Depart - on authorised holidays?" , "Insufficient foliage" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">time out?</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for nap that I've seen before include "Pile (on e.g. velvet)" , "Sleep lightly" , "A short day-sleep" , "Short raised fibres on cloth on snooker table" , "A brief sleep, forty winks" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">time out?</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for coma that I've seen before include "Deep trance" , "Deep sleep" , "Unconsciousness from which person cannot be aroused" , "State of insensibility" , "Unconscious state" .)
(Other definitions for hold it that I've seen before include "Cease action - get a grip!" , "Wait" , "Informally, cease action" , "Hang on a minute" , "Stop right there!" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">time out?</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for hiatus that I've seen before include "Brief respite" , "US hat I change for a break" , "Interruption in intensity or amount" , "A gap or pause in the middle" , "Opening" .)