Possible Clues:

• 22 across-er's article not so hot outside
• For Armstrong, it's Aldrin that takes the strain
• It doesn't hold water
• Lettuce-washing aid
• Lone card represented kitchen item
• What will strain company leading potential mission to Mars
• Presumably feels the strain in soup kitchens perhaps performing what sounds like holy work
• Come down with a bump after firm finds engineer registered item that's full of holes - it's a bit of a strain
• This drains athletics bigwig taking country runs
• Pasta cook's tool