Shoot, mate (3)
I believe the answer is:
bud
This clue is a double definition.
'shoot' is the first definition.
(thesaurus)
'mate' is the second definition.
(shortly for buddy)
(Other definitions for bud that I've seen before include "Tight flower" , "China to America?" , "Small pre-flower knob on plant" , "Small pre-flower knob - nip it" , "Undeveloped flower" .)