Crossword Genius

Use a drill (8)

Ross

I think it could be either:

Which length description are you looking for?:

8

4*

exercise

I believe this is a double definition.

'use' is the first definition.
(I know that use can be written as exercise)

'a drill' is the second definition.
(I know that drill can be written as exercise)

(Other definitions for exercise that I've seen before include "keep physically fit" , "Practice piece of work" , "Keep-fit" , "Employment" , "School task; drill" .)

I've seen this clue in The Telegraph.
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