American trio wanting houses (5)
I believe the answer is:
iowan
'american' is the definition.
(Iowan is an example)
'trio wanting houses' is the wordplay.
'houses' indicates a hidden word (part of the clue houses the answer).
'IOWAN' is hidden in the letters of 'trio wanting'.
(Other definitions for iowan that I've seen before include "One from Des Moines perhaps" , "From one US state" , "US resident" , "Statesman" , "From a US state, capital Des Moines" .)