Possible Clues:

• Not joined
• Single aunt acted wildly, embracing husband
• Novelty act had tune for single
• Cut any tax, attack the reds without borders and without strings
• Disturbingly cute, at hand -- and without ties
• A foreign couple working on the paper not in The Union
• Heat and cut in pieces on your own
• Single cat hunted a cuckoo
• Single United Nations diplomat departs