Perfume used in Queretaro maybe (5)
I believe the answer is:
aroma
'perfume' is the definition.
(synonyms)
'in queretaro maybe' is the wordplay.
'in' says the answer is hidden in the clue.
'AROMA' is hidden within 'queretaro maybe'.
'used' acts as a link.
(Other definitions for aroma that I've seen before include "particular charm" , "Fragrance of spices" , "Perfume" , "Spicy fragrance" , "Scent - fragrance" .)