Crossword Genius

Laces in shoes (6)

Ross

I believe the answer is:

spikes

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

This clue could be a double definition.

'laces' is the first definition.
('spike' can be a synonym of 'lace')

'shoes' is the second definition.
The definition and answer can be both man-made objects as well as being plural nouns.
Maybe there's an association between them I don't understand?

'in' is the link.

Can you help me to learn more?

(Other definitions for spikes that I've seen before include "Running shoes" , "Sharp points on athletes' shoes" , "Makes (a gun) useless" , "Prongs" .)

I've seen this clue in The Guardian.
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