Related Clues:

• It's not a bit thick for a this to sound cold
• It''s not a bit thick that Susan should follow 15 across
• It is first to be found in 19 across and is all so thin
• It's herself that's the thin one
• It's herself, so it is, that's so thin
• It's herself that's the thin one (6)
• It's herself that's the skinny one!
• It's a very thin girl, so it is
• It's herself that's thin
• It's the girl that's the thin one
• It's herself that's so thin
• The girl it is that's so thin
• Is it not thick in suet?
• It's thin - it's a girl!
• The question after tea is not a bit thick