Related Clues:
- Muscles worked in dead bug exercises
- 17-Across + 18-Across = 19-Across
- Crunch muscles, for short
- Muscles a crop top might show off
- Apple part you don't want
- Muscles that planks work
- Muscles above the beltline
- K) Middle of an apple
- Muscles toned by planks
- Earth's central part
- Boring sample comprising carbon and rock
- The hundred target, in Pilates
- They look good when they're ripped
- Things crunched in a gym
- Muscles stretched in cobra pose