Moving bed, rubbish comes to light (6)
I believe the answer is:
litter
'moving bed rubbish' is the definition.
'litter' can be an answer for 'rubbish' (litter is a kind of rubbish). I'm not sure about the 'moving bed' bit.
'to light' is the wordplay.
I cannot really see how this works, but
'light' could be 'lit' (similar in meaning) and 'lit' is located in the answer.
The remaining letters 'ter' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'comes' is the link.
Can you help me to learn more?
(Other definitions for litter that I've seen before include "Discarded paper etc." , "Refuse; brood" , "New-born animals" , "issue in the farmyard" , "Light bed - rubbish" .)