Hard core exercise? Crossword Clue

• Core workout challenge

  New York Times · Sunday, June 5, 2022 · 5 letters

• Something a mutinying pirate might have to walk

  New York Times · Monday, May 2, 2022 · 5 letters

• Core exercise

  New York Times · Friday, October 2, 2020 · 5 letters

• Something "walked" on a pirate ship

  New York Times · Monday, October 17, 2016 · 5 letters

• Exercise position that strengthens the abs

  New York Times · Saturday, January 16, 2016 · 5 letters

• Yoga pose that strengthens the abs

  New York Times · Thursday, January 2, 2014 · 5 letters

• Pirate ship feature

  New York Times · Tuesday, February 19, 2013 · 5 letters

• Party principle

  New York Times · Thursday, February 23, 2012 · 5 letters

• Pirates may make someone walk it

  New York Times · Monday, January 31, 2011 · 5 letters

• It's walked on pirate ships

  New York Times · Tuesday, December 21, 2010 · 5 letters

More clues from this crossword

• 10-Down Island greeting
• 11-Down Rod on the road
• 12-Down Animals that use pheromones to communicate
• 13-Down Gives a thumbs-up
• 14-Across Lead-in to present or science
• 15-Across *Cough, cough*
• 17-Across Bottoms decorated with characters from the "Odyssey"?
• 18-Down Smack
• 19-Down NSFW message
• 20-Across Prophet
• 21-Across Originally named
• 22-Across "Everything ___ Changed" (Taylor Swift song)