Crossword Genius

I say, dispose of this one-room dwelling (4)

Ross

I believe the answer is:

cell

I'm a little stuck... Click here to teach me more about this clue!

'room dwelling' is the definition.
'cell' can be an answer for 'room' (I've seen this before). I'm not sure about the 'dwelling' bit.

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for cell that I've seen before include "Place of confinement" , "American mobile" , "Small compartment" , "Unit of animal or plant structure" , "Animal or plant building unit" .)

I've seen this clue in the Sydney Morning Herald.
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