Driven mad by the heat and too much music (6)
I believe the answer is:
troppo
'driven mad by the heat' is the definition.
I can't tell whether this defines the answer.
'too much music' is the wordplay.
'too' becomes 'trop' (I can't explain this - if you can you should believe this answer much more).
'much' means to remove the last letter (much but not all of the word).
'music' becomes 'pop' (pop music).
'pop' with its final letter taken off is 'po'.
'trop'+'po'='TROPPO'
'and' acts as a link.
Can you help me to learn more?
(Other definitions for troppo that I've seen before include "too much when playing" , "Driven mad [STRINE]" , "Too much musical" , "too much for musicians" .)