Making no progress, but not having collapsed yet (8,5)

I believe the answer is:

standing still

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'making no progress but not' is the definition.
I can't judge whether this definition defines the answer.

'collapsed yet' is the wordplay.
'collapsed' becomes 'standing' (I can't justify this - if you can you should believe this answer much more).
'yet' becomes 'still' (synonyms).
'standing'+'still'='STANDING STILL'

'having' acts as a link.

Can you help me to learn more?

I've seen this clue in The Irish Independent.

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