Stay extremely irresistible in such attire? (8)
I believe the answer is:
lingerie
'such attire?' is the definition.
(type of clothing)
'stay extremely irresistible' is the wordplay.
'stay' becomes 'linger' (lingering is a kind of staying).
'extremely' says to hollow out the word (remove centre letters) (only the extremes of the word are used).
'irresistible' with its centre removed is 'ie'.
'linger'+'ie'='LINGERIE'
'in' acts as a link.
(Other definitions for lingerie that I've seen before include "Slinky undergarments" , "One from W Atlantic island group" , "CLOTHING" , "Female underwear" , "Fancy underwear for women" .)