Don't be such a baby - not with team (5)
I believe the answer is:
group
'team' is the definition.
(thesaurus)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for group that I've seen before include "A number of elements with something in common (50" , "Assemble" , "Band, bunch" , "Unit of pop performers" , "Clique" .)