Possible Clues:

• Is Sidney back with 6 down? Well, he's not
• I see sad drunk getting measles maybe
• How Sidney may be laid up with 29 across
• Is that the way Sidney gets back to comfort? Well it's not
• Is that the comfort of the inspector? Well, it's not
• Is a seed made of this? Well, it isn't
• Well, it's not the sort of thing that would make one die around the oceans
• It makes you sick enough to perish around the oceans
• Diana's in need of comfort - affection
• Epidemiologist's concern