Poles pursuing fashionable taverns (4)
I believe the answer is:
inns
'taverns' is the definition.
(I've seen this before)
'poles pursuing fashionable' is the wordplay.
'poles' becomes 'ns' (North and South poles).
'pursuing' is a charade indicator (letters next to each other).
'fashionable' becomes 'in' (in can mean fashionable or trendy).
'ns' put after 'in' is 'INNS'.
(Other definitions for inns that I've seen before include "Roadhouses or courthouses" , "Hotels" , "Bars" , "travellers' accommodation" , "drinking haunts" .)