Tidies away the clouds littered all over the sky? (6,2)

'tidies away' is the definition.
The answer and definition can be both related to change as well as being verbs in their -s form.
Perhaps you can see an association between them that I don't see?

'clouds littered all over the sky?' is the wordplay.
I cannot really see how this works, but
'over' could be 'up' (e.g. if your time is up it is over) and 'up' is located in the answer.
The remaining letters 'clears' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

'the' is the link.

Can you help me to learn more?