Tup (3)
I believe the answer is:
ram
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tup</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ram that I've seen before include "store for computers" , "The constellation Aries" , "Male animal; stuff" , "'Computer memory, initially (3)'" , "Butt" .)