The odd Italian trip is extra (10)

I believe the answer is:

additional

'is extra' is the definition.
(extra means additional)

'the odd italian trip' is the wordplay.
'trip' is an anagram indicator.
'odd'+'italian'='odditalian'
'odditalian' is an anagram of 'ADDITIONAL'.

(Other definitions for additional that I've seen before include "Extra" , "with sums, perhaps" .)

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

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