Cold princess with street worker (7)
I believe the answer is:
distant
'cold' is the definition.
(similar in meaning)
'princess with street worker' is the wordplay.
'princess' becomes 'di' (Princess Diana).
'with' is a charade indicator (letters next to each other).
'street' becomes 'st' (abbreviation).
'worker' becomes 'ant' (worker is a type of ant).
'di'+'st'+'ant'='DISTANT'
(Other definitions for distant that I've seen before include "cool" , "Unfriendly; far off" , "Far apart in space or time" , "Far away" , "Aloof" .)