Doubt tiny aches can be treated (9)

I believe the answer is:

hesitancy

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'doubt' is the definition.
The answer and definition can be both human attributes as well as being singular nouns.
Perhaps there's an association between them I don't understand?

'tiny aches can be treated' is the wordplay.
'tiny aches' can be anagrammed to 'HESITANCY'.
But, I'm unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for hesitancy that I've seen before include "Slowness to act" , "Reluctance" , "indecisiveness" .)

I've seen this clue in The Daily Express.

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