Crossword Genius

Fixing what someone running scared is doing (7)

Ross

I believe the answer is:

bolting

'doing' is the definition.
The definition and answer can be both to do with motion as well as being present participle verbs.
Perhaps they are linked in a way I don't understand?

I don't understand the remainder of the clue.

(Another definition for bolting that I've seen is " Running away without warning".)

I've seen this clue in The Times.
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