Religious leader is hot in dance (6)
I believe the answer is:
bishop
'religious leader' is the definition.
'bishop' can be an answer for 'leader' (bishop is a kind of leader). I also know that 'religious' relates to this answer.
'is hot in dance' is the wordplay.
'hot' becomes 'h' (abbreviation eg on taps).
'in' means one lot of letters goes inside another.
'dance' becomes 'bop' (bopping is a kind of dancing).
'is'+'h'='ish'
'ish' inserted within 'bop' is 'BISHOP'.
(Other definitions for bishop that I've seen before include "Church dignitary" , "that, moving, must abandon his rank" , "Senior member of the Christian clergy" , "Man with a position on board" , "one of four beginning on board" .)