Easy chance for model (6)

I believe the answer is:

sitter

I believe this is a double definition.

'easy chance' is the first definition.
(as in a sitter in sport)

'for model' is the second definition.
(I've seen this before)

(Other definitions for sitter that I've seen before include "eyed by a drawer?" , "Extremely easy task" , "Artist's model or child's minder" , "Baby minder for pay" , "A poser" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app