Could you work out that the answer to ‘This cylinder is jammed’ is actually ‘Swiss roll’ (a cylinder with jam inside)? If not, Mail Plus’s puzzle kings Dr Gareth Moore, author of more than 100 successful puzzle and brain training books, and crossword champion Mark Goodliffe, are here to help, with tips and tricks on cryptic definition clues, where the whole clue offers a warped definition of the answer.

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