A step wasn't awkward in elasticated trousers (10)

I believe the answer is:

sweatpants

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'elasticated trousers' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'a step wasn't awkward' is the wordplay.
'awkward' indicates an anagram.
'a'+'step'+'wasnt'='astepwasnt'
'astepwasnt' anagrammed gives 'SWEATPANTS'.

'in' is the link.

Can you help me to learn more?

(Other definitions for sweatpants that I've seen before include "clothing" , "Joggers" , "Sports bags" , "Loose, warm garment - wasn't a pest (anag)" .)

I've seen this clue in The Telegraph.

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