Crossword Clue:

The center or hub of something

AnswerCrossword Clue
MARTTrading center (or the start of a lifestyle arbiter's split personality)
EYEStorm center ... or, phonetically, letter that can precede the ends of the answers to the five italicized clues to spell popular devices
METONYMExample or attribute of something used to represent the whole, as "sword" for "military power"
GETOFFBeat the rap ... or something else?
MANIASomething caused by the Beatles or Pokemon
TAPONSomething to do to a shoulder or the brakes
SHUTLike a front door that's not letting all the cold in, do you think I'm paying to heat the entire outdoors or something?