Paled at the possibility of having to beg (5)
I believe the answer is:
plead
'to beg' is the definition.
(I've seen this before)
'paled at the possibility of' is the wordplay.
'paled' anagrams to 'PLEAD'.
Though, I'm unsure how the anagram is indicated.
'having' is the link.
Can you help me to learn more?
(Other definitions for plead that I've seen before include "Sue" , "Request" , "Make an emotional appeal" , "State whether one is guilty or not" , "Beg, implore" .)