She's outside now, in dark glasses (6)
I believe the answer is:
shades
'dark glasses' is the definition.
('shades' can be a synonym of 'dark glasses')
'she's outside now' is the wordplay.
'she's' becomes 'shes' (**).
'outside' is an insertion indicator.
'now' becomes 'ad' (I've seen this in other clues).
'shes' placed around 'ad' is 'SHADES'.
'in' is the link.
(Other definitions for shades that I've seen before include "Ghosts or slang sunglasses" , "Sunglasses, colloquially" , "Cool sunglasses or archaic ghosts" , "Sunglasses (informal)" , "disguise, sometimes" .)