Where to come when you make a hit with the girl (6)
I believe the answer is:
hither
'where to come when you' is the definition.
The definition suggests a singular noun but the answer is not.
'a hit with the girl' is the wordplay.
'with' means one lot of letters go next to another.
'the girl' becomes 'her' ('her' refers to a girl or woman).
'hit'+'her'='HITHER'
'make' acts as a link.
Can you help me to learn more?
(Other definitions for hither that I've seen before include "so far" , "Hit her, being towards this place" , "all over the place - 13a,25a,16d,15d" , "To this place of old" , "Formally, towards this place" .)