Never a Cross Word

Over the past year I have become a great fan of cryptic crosswords. I never used to be able to do them but after much time consulting dictionaries, and swearing I came through. Here are a few of some of my recent favorite clues.

Round letter (8)
Re boxing match, perhaps (5)
Does this temp husband have no where to sit ? (8,4)

Answers to come in a few days.