Related Clues:

• The invoice that's not so high as 11 across
• Drink like a fish?
• She sounds a deep one; get her entirely afterwards
• The lowest of the high, by the sound of it
• By the sound of it you won't get high on beer
• Fish of the deep, by the sound of it (4)
• What a fishy way to sound so deep
• That's a fishy class of a drink
• Could one make her a lot deeper, by the sound of it?
• Her invoice is low
• She sounds low-down quite a lot
• She is not highly invoiced
• She sound rather low-down
• This gives her the lowdown by invoice
• It sounds lowdown and fishy that it's not Guinness