Surrender love for capital (5)
I believe the answer is:
quito
'for capital' is the definition.
(capital of Ecuador)
'surrender love' is the wordplay.
'surrender' becomes 'quit' (quit can mean to give up or surrender).
'love' becomes 'o' (love means zero in tennis).
'quit'+'o'='QUITO'
(Other definitions for quito that I've seen before include "City" , "Capital of Ecuador" , "S America" , "Ecuadorian capital" .)