Study criticism (10)

I believe the answer is:

reflection

I believe this clue is a double definition.

'study' is the first definition.
(thesaurus)

'criticism' is the second definition.
(thesaurus)

(Other definitions for reflection that I've seen before include "Mirror image" , "Effect of not absorbing light" , "serious thought?" , "mental study's required" .)

I've seen this clue in The Globe and Mail.

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