Answer: semitrailer

AnswerCrossword Clue
SEMITRAILERCab attachment
SEMITRAILERVintage Tonka toy
SEMITRAILERIt only moves when towed
semitrailerA trailer having wheels at the back but supported at the front by a towing vehicle
semitrailerA tractor-trailer
semitraileran articulated trailer or lorry