Crossword Genius

Hot Egyptian soul piece (6)

Ross

I believe the answer is:

baking

Here is my best explanation:

'hot' is the definition.
(similar in meaning)

'egyptian soul piece' is the wordplay.
'egyptian soul' becomes 'ba' (term for the soul in ancient Egypt).
'piece' becomes 'king' (king is a kind of chess piece).
'ba'+'king'='BAKING'