Related Clues:

• una is confused, all at sea and sick
• R as the alternative to H with the frightful alternative
• How one might get sick of its being 26 down
• One has the feeling that one can't keep down
• Perhaps I'll be feeling sick of having Una on the ocean
• At last the water makes one want to throw up (6)
• The latter half may give rise to the unpleasant whole of it
• Sickening Sidney is back like the wind
• Or R or H or frightful
• No fear? On the contrary
• Talked over, by the sound of it, with revulsion
• The sort of indisposition the latter half of this can cause
• Can D. read this to get F. right?
• Talked it over, by the sound of it, with revulsion
• The very sound of 1 across is enough to make you want to throw up