Showered in loo building around one (8)

I believe the answer is:

lavished

'showered' is the definition.
('lavish' can be a synonym of 'shower')

'loo building around one' is the wordplay.
'loo' becomes 'lav' (lavatory).
'building' becomes 'shed' (shed is a kind of building).
'around' indicates putting letters inside.
'one' becomes 'i' (Roman numeral).
'lav'+'shed'='lavshed'
'lavshed' going around 'i' is 'LAVISHED'.

'in' acts as a link.

(Another definition for lavished that I've seen is " wasted".)

I've seen this clue in The Times.

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