Moisten a roast (5)
I believe the answer is:
baste
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">moisten a roast</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 baste that I've seen before include "Beast (anag.)" , "clobber" , "Looking at with interest" , "Keep moist" , "Moisten (joint)" .)