Mould shattering, put right (10)
I believe the answer is:
straighten
'mould' is the definition.
(thesaurus)
'shattering put right' is the wordplay.
'put right' indicates anagramming the letters.
'shattering' is an anagram of 'STRAIGHTEN'.
(Other definitions for straighten that I've seen before include "put in alignment?" , "Get in line" , "put back in order" , "Align correctly" , "Adjust" .)