Here are the possible solutions for these were burned in the '60s clue
Answer
Clue
Relevancy
bras
Clue
These were burned in the '60s
Many were burned in the '60s
Definition
(Spenser) brass
oslin
Clue
Grammy-winner K.T. whose ode "80's Ladies" claims "We burned our bras / And we burned our dinners / And we burned our candles at both ends" haha sounds like us