After spire collapsed at Florida, George ends friendly banter (10)
I believe the answer is:
persiflage
'friendly banter' is the definition.
'persiflage' can be an answer for 'banter' (persiflage is a kind of banter). I am not certain of the 'friendly' bit.
'after spire collapsed at florida george ends' is the wordplay.
'after' says to put letters next to each other.
'collapsed' indicates anagramming the letters.
'at' says to put letters next to each other.
'florida' becomes 'fla' (abbreviation).
'ends' means to remove the middle letters.
'george' with its centre removed is 'ge'.
'spire' with letters rearranged gives 'persi'.
'persi'+'fla'='persifla'
'persifla'+'ge' is 'PERSIFLAGE'.
Can you help me to learn more?
(Other definitions for persiflage that I've seen before include "Light mockery, banter" , "Rallying" , "Badinage, banter" , "Light-hearted banter" , "Pale griefs (anag) - flippancy" .)