Wet air around city (5)
I believe the answer is:
rainy
'wet' is the definition.
(similar in meaning)
'air around city' is the wordplay.
'around' indicates anagramming the letters.
'city' becomes 'ny' (short for New York).
'air' is an anagram of 'rai'.
'rai'+'ny'='RAINY'
(Other definitions for rainy that I've seen before include "Wet, showery" , "Pluvial" , "Save your money for a . . . . . day - to buy an umbrella?" , "Drizzly" , "With water falling outside" .)