Scottish town in love with outlaw (4)
I believe the answer is:
oban
'scottish town' is the definition.
(I've seen this before)
'love with outlaw' is the wordplay.
'love' becomes 'o' (love means zero in tennis).
'with' is a charade indicator (letters next to each other).
'outlaw' becomes 'ban' (banning is a kind of outlawing).
'o'+'ban'='OBAN'
'in' acts as a link.
(Other definitions for oban that I've seen before include "Northern port" , "port required" , "small Scottish port" , "Port in western Scotland" , "Argyll seaport" .)