Crossword Genius

Promise confidence (9)

Ross

I believe the answer is:

assurance

I believe this is a double definition.

'promise' is the first definition.
(assurance is a kind of promise)

'confidence' is the second definition.
(synonyms)

(Other definitions for assurance that I've seen before include "Confidence, certainty" , "Cure an ass of a feeling of certainty" , "Guarantee - belief in oneself" , "what may follow life" , "Confidence (in abilities)" .)

I've seen this clue in The Telegraph.
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