Made Wyoming houses a little damp (4)
I believe the answer is:
dewy
'damp' is the definition.
(I've seen this in another clue)
'made wyoming houses a little' is the wordplay.
'a little' indicates the answer is hidden within the clue (a little bit of the clue).
'DEWY' is hidden within 'made wyoming houses'.
(Other definitions for dewy that I've seen before include "Fresh early on" , "fresh in the morning?" , "wet grass" , "Wet with condensation" , "laden with pearls" .)