Where to make honourable love to a girl (8)
I believe the answer is:
honolulu
'where to' is the definition.
The answer is a location as well as being a singular noun. This is suggested by the definition.
'honourable love to a girl' is the wordplay.
'honourable' becomes 'hon' (as in Rt Hon, Right Honourable).
'love' becomes 'o' (In tennis, 'love' means 'zero').
'to a girl' becomes 'lulu' ().
'hon'+'o'+'lulu'='HONOLULU'
'make' acts as a link.
Can you help me to learn more?
(Other definitions for honolulu that I've seen before include "Capital port" , "island capital" , "Hawaii's capital" , "City of Hawaii" , "Hawaiian city" .)