Sailors love change that's clear (7)
I believe the answer is:
absolve
'clear' is the definition.
(I've seen this in another clue)
'sailors love change' is the wordplay.
'sailors' becomes 'abs' (AB is short for able seaman).
'change' indicates an anagram.
'love' with letters rearranged gives 'olve'.
'abs'+'olve'='ABSOLVE'
'that's' is the link.
(Other definitions for absolve that I've seen before include "Declare to be free from blame" , "Excuse" , "Cleanse" , "Declare (someone) blameless" , "Fully pardon" .)