Walks in space (5)

I believe the answer is:

paces

I'm a little stuck... Click here to teach me more about this clue!

'walks' is the definition.
(pacing is a kind of walking)

'space' is the wordplay.
'space' anagrams to 'PACES'.
Though, I'm unsure how this is indicated.

'in' is the link.

Can you help me to learn more?

(Other definitions for paces that I've seen before include "Single steps" , "Space for steps" , "Steps or strides" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app

Connecting...