problem child

Of recent times very much has been said regarding the problem child, but as Lady Stradbroke pointed out last week but little is being done to cope with the menace that child is to itself and to the community.

[A]n ambitious supersonic carrier fighter called the F3H Demon . . . proved too heavy for its Navy-specified Westinghouse engine (in itself a problem child), and turned into a $265 million fiasco.