Wild lily, rare, in chaff (8)
I believe the answer is:
raillery
'chaff' is the definition.
(thesaurus)
'wild lily rare' is the wordplay.
'wild' is an anagram indicator.
'lily'+'rare'='lilyrare'
'lilyrare' with letters rearranged gives 'RAILLERY'.
'in' acts as a link.
(Other definitions for raillery that I've seen before include "Good-humoured teasing" , "Light teasing repartee" , "(Example of) banter" , "Playful satire" , "Badinage" .)