Henry tucked into piece of cake and currently hot toast (4-4)
I believe the answer is:
chin-chin
'toast' is the definition.
(I've seen this before)
'henry tucked into piece of cake and currently hot' is the wordplay.
'henry' becomes 'H' (symbol for the unit of electrical inductance).
'tucked into' means one lot of letters goes inside another.
'piece of cake' becomes 'cinch' (both can mean something very easy).
'and' is a charade indicator (letters next to each other).
'currently hot' becomes 'in' (both can mean fashionable. I am not sure about the 'currently' bit.).
'h' going within 'cinch' is 'chinch'.
'chinch'+'in'='CHIN-CHIN'
Can you help me to learn more?
(Other definitions for chin-chin that I've seen before include "good health ..." , "Down the hatch!" , "Cheers, bottoms up" .)