Different clues about a part of the sentence (6)
I believe the answer is:
clause
'sentence' is the definition.
(thesaurus)
'different clues about a part of' is the wordplay.
'different' is an anagram indicator (letters placed in a different order).
'about' becomes 'a' (abbreviation in Chambers).
'a part of' indicates putting letters inside.
'clues' is an anagram of 'cluse'.
'cluse' enclosing 'a' is 'CLAUSE'.
'the' is the link.
(Other definitions for clause that I've seen before include "Subordinate part of sentence" , "Separate section of a legal document" , "Not quite a full sentence" , "Part of sentence or document" , "Separate item in contract" .)