Doctor, Conservative, reversed housing problem (3,3)

I believe the answer is:

dry rot

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

'housing problem' is the definition.
'dry rot' can be an answer for 'problem' (I have seen 'domestic problem' mean 'dry rot' so perhaps 'problem' could also mean 'dry rot'). I'm unsure of the 'housing' bit.

'doctor conservative reversed' is the wordplay.
'doctor' becomes 'Dr' (abbreviation).
'conservative' becomes 'tory' (informal term for a Conservative Party member).
'reversed' shows that the letters should be reversed in order.
'tory' backwards is 'yrot'.
'dr'+'yrot'='DRY-ROT'

Can you help me to learn more?

(Other definitions for dry rot that I've seen before include "Disease of wood not well ventilated" , "Degeneration" , "Usual, customary" , "problem with truss?" , "Decay of unventilated wood" .)

I've seen this clue in The Sun.

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