… film by old striker who keeps things tight (9)
I believe the answer is:
skinflint
'who keeps things tight' is the definition.
(someone tight with money)
'film by old striker' is the wordplay.
'film' becomes 'skin' (I've seen this in other clues).
'by' says to put letters next to each other.
'old striker' becomes 'flint' (stone struck to make fire).
'skin'+'flint'='SKINFLINT'
(Other definitions for skinflint that I've seen before include "21 [MISER]" , "A miserly person, tightwad" , "Scrooge, miser" , "Very ungenerous or stingy person" , "A miserly person like Scrooge" .)