Ask model (4)
I believe the answer is:
pose
I believe this is a double definition.
'ask' is the first definition.
(synonyms)
'model' is the second definition.
(a model poses for photographs)
(Other definitions for pose that I've seen before include "Model - ask (question)" , "front" , "Present (a question); sit" , "Model; attitude" , "Arrange, model" .)