Possible Clues:

• If in fact
• If a British obsession, it's talked about
• If that man enters outskirts of Wainfleet, that woman's following
• If not dry, accommodating husband should meet that woman
• If rainy outside hospital, that man runs
• He threw (anag.); if
• Options introducer
• If reporting rain or sunny spells, for example
• Or not afterwards