Here are the possible solutions for they're usually heavier at night clue
Answer
Clue
Relevancy
eyelids
Clue
They're usually heavier at night
Definition
EYELID, a fold of skin that covers the eye
ophelia
Clue
Shakespeare character who says "Good night, ladies; good night, sweet ladies; good night, good night"
epees
Clue
They're heavier than foils
Definition
EPEE, (French) a sword similar to the foil but with a larger guard and a heavier blade of triangular cross section
aerodyne
Clue
Heavier-than-air craft
Definition
a heavier-than-air aircraft (as an airplane, helicopter, or glider), as opposed to aerostat
ale
Clue
Bud's heavier relative?
Beer's heavier cousin
Definition
a kind of beer, made without using hops as a flavouring, also YILL
boldcourageous
Clue
Intrepid [Editor's note: This clue appears in heavier type (without the asterisks) in the print version of the puzzle. AcrossLite can't handle that, so just imaging that it's written in darker type.]
