Poor mate shot (6)
I believe the answer is:
paltry
'poor' is the definition.
(thesaurus)
'mate shot' is the wordplay.
'mate' becomes 'pal' (I've seen this before).
'shot' becomes 'try' (I've seen this in other clues).
'pal'+'try'='PALTRY'
(Other definitions for paltry that I've seen before include "Worthless or trivial" , "not worth considering" , "Trivial, comtemptible" , "Petty - base" , "Feeble" .)