Simple Disney character (6,5)

I believe the answer is:

mickey mouse

I believe this clue is a double definition.

'simple' is the first definition.
(thesaurus)

'disney character' is the second definition.
(I've seen this before)

(Other definitions for mickey mouse that I've seen before include "two-dimensional creation" , "Insignificant" , "he's two-dimensional" , "Walt Disney creation" , "Useless" .)

I've seen this clue in The Telegraph.

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