Porgy's love (4)
I believe the answer is:
bess
'porgy's love' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for bess that I've seen before include "Elizabeth (dim.)" , "Operatic mate for Porgy" , "Nickname for English queen" , "Black - was Dick Turpin's horse" , "George Gershwin opera 'Porgy and . . . .'" .)