Related Clues:

• They may produce chips off the old block?
• When it comes to making a cold break, they have a point
• The best in cold desserts - break open 'the hard stuff' with them
• Cold blockbusters?
• Ground breaking instrument found in frozen waters useful to barman
• Roofless prisons allowing entry for huge rock-cutting tools
• Terribly sick carrying large-scale mountaineering gear
• They may help mountaineers with choices of water
• Dreadfully sick after one mushroom -- they can be deadly in the wrong hands
• In the end, points out slippery surface for the cold chippies perhaps
• One getting cold with little energy chooses items for mountaineering
• Water cooler tap in spring switched for those with a mountain to climb
• Circle regularly selects requirements for mountaineers
• Chipping tools
• Sick characters welcome heroic blockbusters sold to those with a mountain to climb