Bad call - too much to bear! (7)
I believe the answer is:
rotting
'bad' is the definition.
(thesaurus)
'call too much to bear' is the wordplay.
I cannot really see how this works, but
'too much' could be 'ott' (short for over the top) and 'ott' is found in the answer.
'call' could be 'ring' (telephone call) and 'ring' is located in the leftover letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for rotting that I've seen before include "Decaying" , "Going bad" , "corruption?" , "Sultanate in NW Borneo" , "Putrid" .)