Slips along, caught in soap-bubbles (5)

I believe the answer is:

scuds

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'slips along' 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?

'caught in soap-bubbles' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'in' means one lot of letters goes inside another.
'soap bubbles' becomes 'suds' (I've seen this in another clue).
'c' put within 'suds' is 'SCUDS'.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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