Mistake working to contain hot jet (7)
I believe the answer is:
typhoon
'jet' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'mistake working to contain hot' is the wordplay.
'mistake' becomes 'typo' (typographical error).
'working' becomes 'on' (e.g. a machine is working or on).
'to contain' means one lot of letters goes inside another.
'hot' becomes 'h' (abbreviation, eg on taps).
'typo'+'on'='typoon'
'typoon' placed around 'h' is 'TYPHOON'.
Can you help me to learn more?
(Other definitions for typhoon that I've seen before include "Indian Ocean tropical storm" , "Pacific tropical storm" , "Pacific hurricane" , "Cyclonic sea storm" , "Tropical cyclone" .)