Den (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">den</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for nest that I've seen before include "Bird's retreat" , "Structure to lay eggs" , "Stack of tables" , "A set (of tables)" , "Cosy home like bird's" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">den</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for lair that I've seen before include "enclosure" , "Burrow" , "mire where he lives" , "Waylay" , "Wild animal's retreat" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">den</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for study that I've seen before include "Scrutinise" , "Room for work/reading" , "Work-room" , "Investigate" , "Examine carefully" .)