Bizarre mess I clear up (8)

I believe the answer is:

peculiar

'bizarre' is the definition.
(thesaurus)

'mess i clear up' is the wordplay.
'mess' indicates anagramming the letters.
'i'+'clear'+'up'='iclearup'
'iclearup' is an anagram of 'PECULIAR'.

(Other definitions for peculiar that I've seen before include "Unusual" , "Out of the ordinary" , "Extraordinary" , "I clear up, being odd" , "sick" .)

I've seen this clue in The Telegraph.

Want a hint initially instead of a full solution? Install my app