Send on striker (7)
I believe the answer is:
forward
I believe this clue is a double definition.
'send on' is the first definition.
('forward' can be a synonym of 'send on')
'striker' is the second definition.
(Other definitions for forward that I've seen before include "Onward" , "moving ahead" , "Promote" , "Ahead; impertinent" , "Bold, overfamiliar" .)