Miserly buyers at last finding hosiery (6)
I believe the answer is:
tights
'hosiery' is the definition.
(I know that Tights is a type of hosiery)
'miserly buyers at last' is the wordplay.
'miserly' becomes 'tight' (synonyms).
'at last' suggests the final letters.
The final letter of 'buyers' is 's'.
'tight'+'s'='TIGHTS'
'finding' is the link.
(Other definitions for tights that I've seen before include "layer of clothing" , "Item of hosiery" , "Ladies' hosiery" , "Hose coverings from waist to feet" , "Close-fitting female garment" .)