Be of use (5)
There are a few possibilities for this:
serve a purpose
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">be of use</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 serve that I've seen before include "Distribute" , "Work for, be of use to" , "deal" , "Be useful to" , "Answer the purpose" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">be of use</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 avail that I've seen before include "Make use, take advantage" , "(Of no) use or benefit" , "Provide help; profit" , "Medal (informal)" , "Help, benefit" .)