Sign of eating too much toast suggested by this? (6,4)

I believe the answer is:

double chin

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'sign' is the definition.
(I have seen 'Sign of obesity' mean 'double chin' so perhaps 'sign' could also mean 'double chin')

I can't explain the remainder of the clue.

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(Other definitions for double chin that I've seen before include "flabby feature" , "Sign of obesity" , "Facial feature of chubbier persons" , "Unattractive feature" .)

I've seen this clue in The Times.

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