This is another obscurity from the Marvel UK vaults: the fortnightly DENNIS comic, launched in November 1989.
US readers will know the little tyke by his full title - DENNIS THE MENACE - although British readers will understand immediately why the name needed a bit of pre-publication pruning.
Marvel US had published a Dennis comic, an early venture into comics for younger readers (predating the Star Comics imprint), but they'd long since abandoned the character by the time the UK Annex of Ideas launched this so - I assume - this was a completely separate licensing deal.
Dennis had something of a media profile in the UK thanks to the animated episodes (also - inevitably - known as Dennis) airing on Channel Four.
Unfortunately, I've no idea how long the fortnightly lasted.