Blink oddly in Italian capital at skimpy costume (6)
I believe the answer is:
bikini
'skimpy costume' is the definition.
(I've seen this before)
'blink oddly in italian capital' is the wordplay.
'oddly' means one should take alternating letters (letters in the odd-numbered positions are used).
'capital' suggests taking the first letters.
The initial letter of 'italian' is 'i'.
The alternate letters of 'blink' are 'bik'.
'bik'+'in'+'i'='BIKINI'
'at' acts as a link.
(Other definitions for bikini that I've seen before include "Small two-piece bathing costume" , "A small two -piece bathing costume" , "Beach wear" , "Kind of swimsuit" , "Bathing suit for the atoll?" .)