Is wearing shades creating problems? (9)
I believe the answer is:
nuisances
'problems?' is the definition.
(I've seen this before)
'is wearing shades' is the wordplay.
'wearing' indicates putting letters inside.
'shades' becomes 'nuances' ('nuance' can be a synonym of 'shade').
'is' put within 'nuances' is 'NUISANCES'.
'creating' is the link.
(Other definitions for nuisances that I've seen before include "problems" , "Pests or irritations" , "Annoyances, pains in the neck" .)