Question

Be heavy-going  if a book, a play, or a film is heavy going, it is boring and difficult to read or understand. / The novel is a bit heavy going at the beginning. / I found the book really heavy going.

Accepted Answer

Verb + Adjective

Collocation	Be heavy-going
Type	Verb + Adjective
Examples	if a book, a play, or a film is heavy going, it is boring and difficult to read or understand. / The novel is a bit heavy going at the beginning. / I found the book really heavy going.

Heavy Heavy Going Verb Adjective Book Play Film Boring