Hobo likes to display old coins (5)
I believe the answer is:
oboli
'old coins' is the definition.
(I've seen this before)
'hobo likes to display' is the wordplay.
'to display' indicates the answer is hidden within the clue (I've seen 'displays' mean this).
'OBOLI' is hidden in the letters of 'hobo likes'.
(Other definitions for oboli that I've seen before include "old coins" , "Old bits" , "antique coins" .)