Possible Clues:

• Said to be genially drunk on a wee whisky, a piece of exaggeration
• Play many a role with mad abandon
• Tear-jerker
• Play of extravagant action
• What goes over the top at various stages?
• What's commonest in Lammermoor? A mad role, wild, emotive stuff
• Play about indulging in OTT sentimentality
• Sounds as if the play is rich and mature, but to an exaggerated extent
• Lurid piece made moral, in a way
• Role madam played -- in this?