Beg for new pedal (5)
I believe the answer is:
plead
'beg' is the definition.
(I know that beg is a kind of plead)
'new pedal' is the wordplay.
'new' indicates an anagram.
'pedal' with letters rearranged gives 'PLEAD'.
'for' is the link.
(Other definitions for plead that I've seen before include "Implore, entreat" , "Claim; entreat" , "State whether one is guilty or not" , "Sue" , "Say one is guilty or not guilty" .)