House that is free around the centre of Marrakech (4)

I believe the answer is:

riad

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

'house that' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'free around the centre of marrakech' is the wordplay.
'free' becomes 'rid' (to be free of something is to be rid of it).
'around' means one lot of letters goes inside another.
'the centre of' means to look at the middle letters.
The middle letter of 'marrakech' is 'a'.
'rid' placed around 'a' is 'RIAD'.

'is' is the link.

Can you help me to learn more?

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app