Delivery for doorman (7)
I believe the answer is:
bouncer
This clue is a double definition.
'delivery' is the first definition.
(type of cricket delivery)
'for doorman' is the second definition.
(security guard stationed at a door)
(Other definitions for bouncer that I've seen before include "Cricket delivery - employee ejecting troublemakers" , "tough doorman" , "Club doorman" , "Club guard; short ball" , "Lively ball" .)