Patronise all the locals, turning up to fight outside clubs (3-5)
I believe the answer is:
pub-crawl
'patronise all the locals' is the definition.
I can't tell whether this definition defines the answer.
'turning up to fight outside clubs' is the wordplay.
'turning' says the letters should be written backwards.
'to fight' becomes 'brawl' (brawl is a kind of fight).
'outside' is an insertion indicator (some letters go outside others).
'clubs' becomes 'c' (abbreviation in card games).
'up' backwards is 'pu'.
'brawl' placed around 'c' is 'bcrawl'.
'pu'+'bcrawl'='PUB-CRAWL'
Can you help me to learn more?
(Other definitions for pub-crawl that I've seen before include "Alcoholic journey" , "Drinking session spread over several bars" , "boozy event" , "Night out (ending on all fours?)" , "A local expedition?" .)