Clue: Topless rockers opening pipe get punchy with cryptic contrivance (6,3)
Answer: PUZZLE BOX
Explanation: Topless rockers opening pipe get punchy with cryptic contrivance (6,3)
[*topless*] **ZZ** (Top) ("rockers") *opening* **PULE** ("to pipe" or whimper) + **BOX** ("get punchy")