Mendicant (6)
I believe the answer is:
beggar
'mendicant' is the definition.
(synonyms)
This is all the clue.
(Other definitions for beggar that I've seen before include "Person who can't choose?" , "Pauper who lives by soliciting" , "One pleading desperately" , "I ask you!" , "One lives by asking for money or food" .)