Style to seduce using chatline essentially, instead of clubs (7)
I believe the answer is:
entitle
'style' is the definition.
(I've seen this before)
I can't explain the remainder of the clue.
(Other definitions for entitle that I've seen before include "Name; empower" , "confer rank" , "Give a right (to someone to do something)" , "Style; give right to" , "Name; enable" .)