Dance with girl with 'it' (5)
I believe the answer is:
salsa
'dance' is the definition.
(I've seen this before)
'girl with it' is the wordplay.
'girl' becomes 'sal' (feminine given name**).
'with' is a charade indicator (letters next to each other).
'it' becomes 'sa' (old-fashioned abbreviation for sex appeal).
'sal'+'sa'='SALSA'
'with' is the link.
(Other definitions for salsa that I've seen before include "Spicy tomato sauce" , "that's rather spicy!" , "Latin American dance - spicy Mexican sauce" , "Latin-American dance" , "Cuban dance music or spicy sauce" .)