Rod and Sid turned out to be unsavoury (6)
I believe the answer is:
sordid
'unsavoury' is the definition.
Both the answer and definition are adjectives. Maybe there's an association between them I don't understand?
'rod and sid turned out' is the wordplay.
'and' says to put letters next to each other.
'turned out' indicates an anagram.
'rod'+'sid'='rodsid'
'rodsid' with letters rearranged gives 'SORDID'.
'to be' acts as a link.
Can you help me to learn more?
(Other definitions for sordid that I've seen before include "Unclean" , "Dirty and unpleasant" , "Morally degraded" , "Mean and grubby" , "Filthy - base" .)