Distinct when surprisingly revised (7)
I believe the answer is:
diverse
'distinct' is the definition.
(thesaurus)
'surprisingly revised' is the wordplay.
'surprisingly' indicates an anagram (a surprising ordering of the letters).
'revised' is an anagram of 'DIVERSE'.
'when' acts as a link.
(Other definitions for diverse that I've seen before include "Miscellaneous" , "Multifarious" , "Many and various" , "I served in many ways" , "Sundry" .)