Good place, somewhat fresh and unusually airy (6)
I believe the answer is:
friary
'good' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'somewhat fresh and unusually airy' is the wordplay.
'somewhat fresh' becomes 'fr' (I am not sure about this - if you are sure you should believe this answer much more).
'and' is a charade indicator (letters next to each other).
'unusually' is an anagram indicator.
'airy' anagrammed gives 'iary'.
'fr'+'iary'='FRIARY'
'place' acts as a link.
Can you help me to learn more?
(Other definitions for friary that I've seen before include "Religious house" , "Religious institution" , "House of Dominicans, for example" , "Place of the mendicant orders" , "One's home to order" .)