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Creatures reminding us that conflagration moves fast (9)

Ross

I believe the answer is:

fireflies

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'creatures reminding us that' is the definition.
'fireflies' can be an answer for 'creatures' (firefly is a kind of creature). I'm unsure of the rest of the definition.

'conflagration moves fast' is the wordplay.
'conflagration' becomes 'fire' (I've seen this before).
'moves fast' becomes 'flies' (flying is a kind of moving. I am not sure about the 'fast' bit.**).
'fire'+'flies'='FIREFLIES'

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I've seen this clue in the Evening Standard.
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