Here are the possible solutions for they stand upright at sea clue
Answer
Clue
Relevancy
masts
Clue
They stand upright at sea
Definition
MAST, to provide with a long pole that supports a ship's sails
bear
Clue
Animal that can stand upright
Definition
to endure
empty
Clue
"An ___ bag cannot stand upright"
Definition
to remove the contents of
mast
Clue
Upright at sea
Definition
to provide with a long pole that supports a ship's sails
sahl
Clue
Early and influential stand-up comedian Mort who said, "Liberals feel unworthy of their possessions. Conservatives feel they deserve everything they've stolen" haha I feel that
byme
Clue
"Just as long as you stand, stand ___"
lie
Clue
Stand's opposite ... or a bad thing to do on the stand