Clue: NHL penalty killer

Answer: ICER

Length: 4

---

Similar Clues:

• Compaq rival or test killer (ACER with 4 letters)
• Major WWI killer (FLU with 3 letters)
• Punish with an arbitrary penalty (AMERCE with 6 letters)
• Would-be iPod killer (ZUNE with 4 letters)
• Killer banned in 1973 (DDT with 3 letters)
• Kennedy's killer, officially (OSWALD with 6 letters)
• Bee killer, at times (STING with 5 letters)
• 2003 BoSox-killer Aaron (BOONE with 5 letters)
• "Dude, killer!" (OHYEAH with 6 letters)
• Wine enthusiast's list of killer reds? (SEVENDEADLYZINS with 15 letters)