Cavalier beheaded: weapon wielded in social centre (5,4)
I believe the answer is:
night club
'cavalier beheaded weapon wielded in social centre' is the definition.
I can't tell whether this defines the answer.
'cavalier beheaded weapon' is the wordplay.
'cavalier' becomes 'knight' (I've seen this before).
'beheaded' means to remove the first letter (the head of the word is removed).
'weapon' becomes 'club' (weapon for hitting people with).
'knight' with its initial letter removed is 'night'.
'night'+'club'='NIGHT-CLUB'
Can you help me to learn more?
(Other definitions for night club that I've seen before include "Venue open till late" , "Late entertainment spot" , "Scene of late hour socialising" , "Bar, disco, etc" , "Place open late for entertainment, food and drink" .)