Bull on glue bottles (5)
I believe the answer is:
elmer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bull on glue bottles</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for elmer that I've seen before include "Man" , "____ Rice, US dramatist" , "- - Gantry (book, film)" , "name" .)