Answer:

bart

AnswerCrossword Clue
BARTMaggie and Lisa's brother
BARTS.F. subway system
BARTPackers' Starr
BARTStarr of the NFL
BARTOne of the Mavericks
BARTHomer's progeny
BARTMarge's son
BARTHomer's imp son
BARTSF subway system
BARTStarr the QB
BARTS.F. underground
BARTFrisco train system
BARTMaggie's brother
BART"The Simpsons" son
BARTOne of TV's Mavericks
BARTCartoon fourth-grader
BARTHomer Simpson's son
BARTHomer's son
BARTMilhouse's pal
BART10-year-old Simpson
BARTSon of Homer
BARTOne of the Simpsons
BARTCommuter choice in S.F.
BARTConner or Simpson
BARTMarge and Homer's boy
BARTYoung Simpson
BART"The boy," to Homer Simpson
BARTHomer's boy
BARTSan Francisco subway syst.
BARTSuper Bowl I QB Starr
BARTPrecocious cartoon character
BARTSimpson son
BARTBret Maverick's brother
BARTCartoon bad boy
BARTFourth-grade toon
BARTSan Francisco rail syst.
BARTA Simpson
BARTSimpson or Starr
BARTHis dad drinks Duff
BARTStarr or Simpson