Paul regularly fights over clubs - on these trips?
I believe the answer is:
pubcrawls
'these trips?' is the definition.
The definition suggests an adverb but the answer is not.
'paul regularly fights over clubs' is the wordplay.
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
'fights' becomes 'brawls' (brawl is a kind of fight).
'over' is an insertion indicator.
'clubs' becomes 'c' (abbreviation used in card games such as bridge).
The alternating letters of 'paul' are 'pu'.
'brawls' enclosing 'c' is 'bcrawls'.
'pu'+'bcrawls'='PUB-CRAWLS'
'on' is the link.
Can you help me to learn more?
(Another definition for pubcrawls that I've seen is " Multiple round trips".)