Make full (4)
I believe the answer is:
fill
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">make full</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for fill that I've seen before include "Replenish" , "Be suitable - . . . . the bill" , "Appoint person to (post)" , "Plug (a gap)" , "Occupy the whole of" .)