Play outside transport terminal in Chiswick (4)
I believe the answer is:
busk
'play outside transport' is the definition.
The definition suggests a singular noun which matches the answer.
'terminal in chiswick' is the wordplay.
I cannot really see how this works, but
'terminal' could be 'bus' (bus terminal is a kind of terminal) and 'bus' is found within the answer.
A single letter 'k' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for busk that I've seen before include "Improvise; perform for money in the street" , "Play street music" , "Play for donations" , "provide entertainment for money" , "Perform, seeking coins" .)