Sneaks overturn digits (7)

I believe the answer is:

tiptoes

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'sneaks' is the definition.
The definition and answer can be both to do with motion as well as being verbs in their -s form.
Perhaps they are linked in a way I don't understand?

'overturn digits' is the wordplay.
'overturn' becomes 'tip' (I've seen this in another clue).
'digits' becomes 'toes' (toe is a kind of digit).
'tip'+'toes'='TIPTOES'

Can you help me to learn more?

(Another definition for tiptoes that I've seen is " Creeps".)

I've seen this clue in The Mirror.

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