Put in order that could be shattering (10)
I believe the answer is:
straighten
'put in order' is the definition.
(thesaurus)
'could be shattering' is the wordplay.
'could be' indicates anagramming the letters.
'shattering' with letters rearranged gives 'STRAIGHTEN'.
'that' is the link.
(Other definitions for straighten that I've seen before include "Adjust" , "Unbend, align" , "Remove bends from (something)" , "Shattering (anag) - unbend" , "Get in line" .)