Possible Clues:

• Y fronts in your tub turn round in uniform motion
• Chemical element Y
• Rare earth that long ago briefly gained a lot of success
• Rare element of maturity adult leaves out
• Element in LEDs
• Element 39
• Table item, last of lousy dry alcohol I swallowed
• Rare element of mildly obscene, topless turns touring Indonesia
• Rare earth element
• Hollow Yorkist victory without local element