Without any movement (5-5)

I think it could be either:

Which length description are you looking for?:

5-5

stock-still

'without any movement' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for stock-still that I've seen before include "Without any movement" , "Absolutely motionless" , "Completely motionless" .)

I've seen this clue in The Mirror and The Guardian.

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