Macho fellow I caught exerting bad influence (7)
I believe the answer is:
malefic
'exerting bad influence' is the definition.
I can't judge whether this definition defines the answer.
'macho fellow i caught' is the wordplay.
'macho' becomes 'male' (macho means aggressively masculine).
'fellow' becomes 'f' (abbreviation - of a society etc.).
'caught' becomes 'c' (cricket abbreviation).
'male'+'f'+'i'+'c'='MALEFIC'
Can you help me to learn more?
(Other definitions for malefic that I've seen before include "Baleful" , "Having an evil influence" , "Causing harm" .)