Newly-prominent delivery company, sharp (7)
I believe the answer is:
upstart
'newly-prominent' is the definition.
I can't judge whether this defines the answer.
'delivery company sharp' is the wordplay.
'delivery company' becomes 'ups' (I've seen this in another clue).
'sharp' becomes 'tart' (I've seen this before).
'ups'+'tart'='UPSTART'
Can you help me to learn more?
(Other definitions for upstart that I've seen before include "Person newly risen from the ranks and arrogant" , "Over-assertive newcomer" , "Person risen to high position, arrogant with it" , "Person who behaves arrogantly in the new position" , "someone pretentious" .)