1: Infection leads from partly uncooked steak (3)
 2: Later round without an opponent (3)
 3: Curse the mother country? (9)
 4: Tender translator of runes (5)
 5: A heron regrets losing its wings (5)
 8: Rings for the groups (5)
 9: Turning up to follow bashful rodent (5)
 12: Going after the final piece of puzzle for a very long time (3)
 13: Worthless even when recycled (3)