'Heroin kept inside' heard from pen inmate?

While searching our database we found 1 possible solution for the: 'Heroin kept inside' heard from pen inmate? crossword clue. This crossword clue was last seen on 19 February 2024 The Guardian Cryptic Crossword puzzle. The solution we have for 'Heroin kept inside' heard from pen inmate? has a total of 4 letters.

Answer

1O
2I
3N
4K

If you have already solved this crossword clue and are looking for the main post then head over to The Guardian Cryptic Crossword 19 February 2024 Answers