Transport leader playing for cash (7)
I believe the answer is:
busking
'playing for cash' is the definition.
I can't tell whether this defines the answer.
'transport leader' is the wordplay.
'transport' becomes 'bus' (bus is a kind of transport).
'leader' becomes 'king' (a king is a royal leader).
'bus'+'king'='BUSKING'
Can you help me to learn more?
(Other definitions for busking that I've seen before include "performing for donations" , "Playing street music" , "Serenading passers-by" , "Performing in the street for money" , "providing entertainment for commuters?" .)