Allude to a palindrome (5)
I believe the answer is:
refer
I believe this is a double definition.
'allude' is the first definition.
(I've seen this in another clue)
'palindrome' is the second definition.
'to a' acts as a link.
(Other definitions for refer that I've seen before include "Mention, cite" , "Advert, cite" , "Freer (anag.)" , "Advert, mention" , "Turn to (for information, authorisation etc)" .)