Coat reapplied with flair in building with eight columns (9)

I believe the answer is:

octastyle

'building with eight columns' is the definition.
(architectural term)

'coat reapplied with flair' is the wordplay.
'reapplied' is an anagram indicator.
'with' is a charade indicator (letters next to each other).
'flair' becomes 'style' (synonyms).
'coat' is an anagram of 'octa'.
'octa'+'style'='OCTASTYLE'

'in' acts as a link.

(Another definition for octastyle that I've seen is " portico".)

I've seen this clue in The Guardian.

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