One used to shoot this month's record (6)
I believe the answer is:
instep
'one used to shoot' is the definition.
(may be used to shoot in football)
'this month's record' is the wordplay.
'this month' becomes 'inst' (I've seen this before).
'record' becomes 'ep'.
'inst'+'ep'='INSTEP'
(Other definitions for instep that I've seen before include "Top of foot" , "Arch area of the foot" , "Part of foot/shoe" , "Sir Jack --, famous English cricketer" , "Marching together correctly" .)