Crossword clue: an oblong metal ring with a spring clip; used in mountaineering to attach a rope to a piton or to connect two ropes

The most common answer is carabiner (9 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

carabiner 9 letters wn-def

an oblong metal ring with a spring clip; used in mountaineering to attach a rope to a piton or to connect two ropes

karabiner 9 letters wn-def

an oblong metal ring with a spring clip; used in mountaineering to attach a rope to a piton or to connect two ropes