Ill feeling stems from the Franco-Uruguayan conflict (7)
I believe the answer is:
rancour
'ill feeling' is the definition.
(I've seen this before)
'from the franco-uruguayan conflict' is the wordplay.
'from' indicates the answer is hidden within the clue.
'RANCOUR' is hidden within 'franco uruguayan conflict'.
'stems' is the link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for rancour that I've seen before include "Bitterness or resentfulness" , "Bitter feeling or ill will" , "Hard feelings" , "Virulence" , "Feeling of bitterness or dislike" .)