Possible Clues:

• Hiding source of tension, Dane and vet broke up feud
• Backing some dratted never-ending feud
• Sell Tate off causing family feud
• Review volunteer fighters once admitting death in hostile campaign
• Essentially David James, say, lets in goal -- causing feud
• Long-standing feud
• Sell death-trap missing odd parts for prolonged quarrel
• Feud among parties involving tit-for-tat actions
• Screen reservists assuming outcome for bloody dispute
• Chatted, never to hold back rivalry