Beg for goods ditched by man and chief (7)
I believe the answer is:
entreat
'beg' is the definition.
(to entreat someone is to beg or plead)
'goods ditched by man and chief' is the wordplay.
I cannot really understand how this works, but
'by' could be 'at' and 'at' is located in the answer.
'man' could be 'r' (abbreviation for rook, a chess piece or 'man') and 'r' is found within the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is found within the answer.
This explanation may well be incorrect...
'for' acts as a link.
Can you help me to learn more?
(Other definitions for entreat that I've seen before include "Beseech, implore" , "go begging?" , "Beg earnestly or emotionally" , "Request earnestly" , "Beg earnestly, plead with" .)