The term 'SPELUNKER's Aid' refers to items used by spelunkers, or cave explorers, to help them navigate dark and dangerous caves. The three solutions for this term are TORCH (5 letters), LAMP (4 letters), and LANTERN (7 letters). A TORCH is a handheld device that produces light when lit, usually with a flame. A LAMP is a device that produces light when powered by electricity. A LANTERN is a portable device that produces light when lit, usually with a flame or candle. All three of these items can be used by spelunkers to help them explore caves safely.