Play to the camera (3)
I believe the answer is:
mug
'play to the camera' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for mug that I've seen before include "Fool - face - vessel" , "Grimace" , "Tankard" , "A person easily deceived, by gum" , "concentrate on studying" .)