Song about love includes, on reflection, oddly soppy line (7)
I believe the answer is:
calypso
'song' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for calypso that I've seen before include "Satirical West Indian ballad - orchid - sea nymph" , "West Indian ballad - Homerian sea nymph" , "W. Indies music" , "Topical West Indian song - orchid - sea nymph" , "Improvised song of the Caribbean" .)