Game involving a striker? (5)
I believe the answer is:
match
This clue is a double definition.
'game' is the first definition.
(I've seen this before)
'a striker?' is the second definition.
(a match can be struck)
'involving' is the link.
(Other definitions for match that I've seen before include "Go together" , "Correspondence" , "Light" , "Equivalent" , "tie" .)