Searches for a model in glasses (9)
I believe the answer is:
prospects
'searches' is the definition.
(prospecting is a kind of searching)
'for a model in glasses' is the wordplay.
'for' becomes 'pro' (as in being 'pro' something).
'a model' becomes 'T' (Ford Model T car).
'in' indicates putting letters inside.
'glasses' becomes 'specs' (spectacles).
't' inserted into 'specs' is 'spects'.
'pro'+'spects'='PROSPECTS'
(Other definitions for prospects that I've seen before include "Searches" , "Explores for minerals" , "Looks for gold and hopes for the future" , "Expectations" , "Chances of success, outlooks" .)