Beg for bit of bread and cheese spread (7)
I believe the answer is:
beseech
'beg' is the definition.
(I've seen this before)
'bit of bread and cheese spread' is the wordplay.
'bit of' suggests taking the first letters.
'and' means one lot of letters go next to another.
'spread' is an anagram indicator.
The first letter of 'bread' is 'b'.
'cheese' is an anagram of 'eseech'.
'b'+'eseech'='BESEECH'
'for' acts as a link.
(Other definitions for beseech that I've seen before include "Beg earnestly, plead" , "Sue" , "wood" , "Fervently ask (someone) for something" , "petition" .)