Lent lily (8)
I believe the answer is:
daffodil
'lent lily' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for daffodil that I've seen before include "Yellow spring flower beloved of Wordsworth" , "Yellow-flowered narcissus" , "Yellow narcissus" , "Welsh emblem" , "Plant of the genus Narcissus" .)