Secret society disposing of leader in Marrakesh house (4)

I believe the answer is:

riad

'marrakesh house' is the definition.
(style of traditional house in Morocco)

'secret society disposing of leader' is the wordplay.
'secret society' becomes 'triad' (term for an organised crime group in China).
'disposing of leader' means to remove the first letter.
'triad' with its first letter taken off is 'RIAD'.

'in' is the link.

I've seen this clue in The Times.

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