Answer: BUM

AnswerCrossword Clue
BUMInjured, as a knee
BUMNo-goodnik
BUMWander (around)
BUMWord before steer or rap
BUMNe'er-do-well
BUMTramp
BUMBleacher creature?
BUMBorrow, as a smoke
BUMNot valid, as a check
BUMDepress, with "out"
BUMUndeserved, as a rap
BUMWork shirker
BUMSort of rap
BUMBrit's bottom
BUMSponge, as a smoke
BUMHitch, as a ride
BUMBrooklyn Dodger, affectionately
BUMIdler
BUMGood-for-nothing
BUMMoocher
bumloafer or idler
BUMLike some steers
BUMLike some raps
BUMVagrant
BUMCadge
BUMEnthusiast
BUMDerriere
BUMErroneous, as a guess
BUMBorrow, in slang
BUMMooch
BUMFreeloader
BUMLike some deals
BUMSki or tennis follower
BUMBorrow, but not really
BUMHobo
BUMMooch, as a ride
BUMRear in Liverpool
BUMMooch, as a smoke
BUM"Hallelujah, I'm a ..."
BUMDerelict