Terrorise drunken merrymaker (9)

I believe the answer is:

roisterer

'merrymaker' is the definition.
(roisterer is a kind of merrymaker)

'terrorise drunken' is the wordplay.
'drunken' indicates an anagram.
'terrorise' is an anagram of 'ROISTERER'.

(Other definitions for roisterer that I've seen before include "He's pushing the boat out" , "noisy party animal" , "Noisy merrymaker" , "Noisy reveller" , "Living it up" .)

I've seen this clue in the Sydney Morning Herald.

Want a hint initially instead of a full solution? Install my app