More impetuous, having a piece of bacon (6)
I believe the answer is:
rasher
'a piece of bacon' is the definition.
(a rasher is a piece of bacon)
'more impetuous' is the wordplay.
I cannot quite understand how this works, but
'impetuous' could be 'rash' (I've seen this in another clue) and 'rash' is present in the answer.
The remaining letters 'er' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'having' acts as a link.
Can you help me to learn more?
(Other definitions for rasher that I've seen before include "taking more unnecessary risks?" , "More wildly adventurous" , "Not so safe" , "Thin slice of bacon" , "More imprudent" .)