Barely enough (5)
I believe the answer is:
scant
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">barely enough</span>' is the definition.<br/ ><span class="explanation-format__explanation">(scant means barely enough or barely sufficient)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for scant that I've seen before include "Meagre" , "Bare" , "Cursory" , "Barely sufficient" , "Hardly any" .)