Tender feeling from foe -- in fact that's odd (9)
I believe the answer is:
affection
'tender feeling' is the definition.
(thesaurus)
'foe in fact that's odd' is the wordplay.
'that's odd' indicates anagramming the letters.
'foe'+'in'+'fact'='foeinfact'
'foeinfact' with letters rearranged gives 'AFFECTION'.
'from' is the link.
(Other definitions for affection that I've seen before include "Goodwill" , "Fondness, tenderness" , "Feeling of fondness" , "Warm regard" , "Feeling of love or strong liking" .)