Provided an alibi for the bloke who had left (7)
I believe the answer is:
covered
'had left' is the definition.
The answer and definition can be both related to bodily activities as well as being past participle verbs.
Perhaps there's an association between them I don't understand?
'provided an alibi for the bloke' is the wordplay.
I cannot really understand how this works, but
'alibi' could be 'cover' (I've seen this in another clue) and 'cover' is present in the answer.
'bloke' could be 'ed' (short for Edward) and 'ed' is present in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
'who' is the link.
Can you help me to learn more?
(Other definitions for covered that I've seen before include "Reported" , "Insured; enveloped" , "Concealed; dealt with" , "Concealed; roofed over" , "Overlaid with something" .)