Hymenopterans (5)
I believe the answer is:
wasps
'hymenopterans' is the definition.
(wasp is a kind of hymenopteran)
This is the entire clue.
(Other definitions for wasps that I've seen before include "Ones playing together" , "Rugby club" , "English Protestant stingers?" , "Members of rugby team" , "Insects; rugby union team" .)