Answer: fifthwheel

AnswerCrossword Clue
FIFTHWHEEL

Unwanted thing

FIFTHWHEEL

Superfluous individual

FIFTHWHEEL

Useful type of hitch in a pickup truck, or an undesired part of a social circle

FIFTHWHEEL
Superfluous part
FIFTHWHEEL
Somebody superfluous.
FIFTHWHEELSuperfluous one.
FIFTHWHEELSuperfluous person
FIFTHWHEELUnwanted tagalong
FIFTHWHEELUnnecessary person
FIFTHWHEELUnnecessary person, on a double date
FIFTHWHEELUseless person
FIFTHWHEEL20 percent of a spare tire?
FIFTHWHEELMisfit
FIFTHWHEELOdd man with two couples
FIFTHWHEELDouble-date extra?