Extensive cellar ages in a bad way (5-5)

I believe the answer is:

large-scale

'extensive' is the definition.
(thesaurus)

'cellar ages in a bad way' is the wordplay.
'in a bad way' is an anagram indicator.
'cellar'+'ages'='cellarages'
'cellarages' is an anagram of 'LARGE-SCALE'.

(Other definitions for large-scale that I've seen before include "Extensive" , "Wide-ranging" .)

I've seen this clue in the Sydney Morning Herald.

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