Possible Clues:

• Greed is a poor source of conflict
• Differ in opinion, writing dreadful note about depression
• Said to differ? Acquiesce - or not!
• I greased wheels in dispute
• Detective and self-starter come to the same conclusion at conflict
• Clash (with)
• Take issue with detective sergeant initially to get on
• Police eager to resolve conflict
• Refuse to concede some aphid is a greenfly
• Conflict alarming English about flag