At risk in Limbo possibly collecting poor (2,4,3)
I believe the answer is:
on thin ice
'at risk' is the definition.
(I've seen this before)
'limbo possibly collecting poor' is the wordplay.
I cannot really see how this works, but
'poor' could be 'thin' (I've seen this in other clues) and 'thin' is present in the answer.
The remaining letters 'onice' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'in' is the link.
Can you help me to learn more?
(Other definitions for on thin ice that I've seen before include "sailing close to the wind?" , "Heading for trouble" , "At risk" , "in danger of a soaking?" , "Unsafe" .)