Wherein things grow heated? (6)
I believe the answer is:
hotbed
'wherein things grow' is the definition.
I can't tell whether this defines the answer.
'heated?' is the wordplay.
I cannot really understand how this works, but
'heated?' could be 'hot' ('hot' can be a synonym of 'heated') and 'hot' is found in the answer.
The remaining letters 'bed' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for hotbed that I've seen before include "Place with ideal conditions for rapid growth" , "Breeding ground" , "vicious place" , "Forced to grow up early in this" , "Place with ideal conditions for development" .)