Fancy item lost close to store is evergreen at Christmas (9)
I believe the answer is:
mistletoe
'evergreen at christmas' is the definition.
(plant associated with Christmas)
'fancy item lost close to store' is the wordplay.
'fancy' is an anagram indicator.
'close to' indicates one should take the final letters (the close/ending of).
The final letter of 'store' is 'e'.
'item'+'lost'='itemlost'
'itemlost' anagrammed gives 'mistleto'.
'mistleto'+'e'='MISTLETOE'
'is' is the link.
(Other definitions for mistletoe that I've seen before include "incitement to lovers?" , "it may get you a few smackers" , "put up for a Christmas function?" , "tempting a smack?" , "Something to stand under when kissing?" .)