Thank you, Jim Jools. I try so hard to avoid resorting to Answerbank, but usually fail. I'm sure Kate finds it even more difficult to outfox all you clever people than Mike did.
A suggestion, calumniate.
Use the site oneacross.com (google will find it for you).
Write in the clue eg custom where a man goes to bed while his child is being born.
Write in the letters you have and ???s, eg c?u??e
Hit Go and wait
Out pops couvade