Wind was single flute, perhaps? (9)
I believe the answer is:
wineglass
'flute perhaps?' is the definition.
(flute is a kind of wineglass)
'wind was single' is the wordplay.
'wind' indicates an anagram.
'was'+'single'='wassingle'
'wassingle' with letters rearranged gives 'WINEGLASS'.
(Other definitions for wineglass that I've seen before include "possibly held in this port? The opposite" , "Vessel with bowl and stem" .)