It delivers arrival that hurts! (5)
I believe the answer is:
arrow
'it' is the definition.
The definition suggests a singular noun which matches the answer.
'arrival that hurts' is the wordplay.
'arrival' becomes 'arr' (abbreviation used in transport).
'that hurts' becomes 'ow!'.
'arr'+'ow'='ARROW'
'delivers' is the link.
Can you help me to learn more?
(Other definitions for arrow that I've seen before include "Sharp-tipped missile" , "what may have killed Harold?" , "Missile fired from bow" , "Item in a quiver" , "Arm" .)