Leaders of Pakistani uprising behind steel bars (4)
I believe the answer is:
pubs
'bars' is the definition.
'leaders of pakistani uprising behind steel' is the wordplay.
'leaders of' suggests taking the first letters.
The initial letters of 'pakistani uprising behind steel' is 'PUBS'.
(Other definitions for pubs that I've seen before include "Hostelries" , "Inns, drinking places" , "Locals" , "Taverns" .)