Unship in a way to cause hurt (6)
I believe the answer is:
punish
'hurt' is the definition.
(thesaurus)
'unship in a way' is the wordplay.
'in a way' indicates anagramming the letters.
'unship' is an anagram of 'PUNISH'.
'to cause' acts as a link.
(Other definitions for punish that I've seen before include "Penalise" , "Flog" , "Castigate" , "Treat harshly or severely" , "Inflict a penalty upon" .)