Figure around hotel rearranged fund-raiser (8)
I believe the answer is:
telethon
'fund-raiser' is the definition.
(I've seen this in another clue)
'figure around hotel rearranged' is the wordplay.
'figure' becomes 'ten' (ten is a number or figure).
'around' indicates putting letters inside.
'rearranged' is an anagram indicator.
'hotel' with letters rearranged gives 'letho'.
'ten' enclosing 'letho' is 'TELETHON'.
(Other definitions for telethon that I've seen before include "Long charity TV show" , "Lengthy TV programme for charity" , "TV broadcast for charity" , "TV fundraiser" , "Lengthy broadcast for charity" .)