How many letters does the top answer for “shaped like a cross” have?

The most common answer is cruciate (8 letters).

Crossword clue: shaped like a cross

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

cruciate 8 letters wn-def

shaped like a cross

cruciform 9 letters wn-def

shaped like a cross

like a wedge; wedge-shaped. 50% similar → wedgy

shaped like a boat 50% similar → navicular, scaphoid

shaped like a catkin. 50% similar → amentiform

shaped like a cube 50% similar → cubical, cubiform, cuboid

shaped like a foot. 50% similar → pediform

shaped like a globe. 50% similar → globeshaped

shaped like a horseshoe. 50% similar → hippocrepiform

shaped like a needle. 50% similar → aciform