Just one letter to go - driving me nuts! 18a Being excited with Pompeii, perhaps, but missing half of it, such as the streets? (5) . I have RUTT?. Feels as though it should have something to do with eruption, but I can't see it!
Bless you, Kayakamina! I THINK I can feel convinced now, but still a bit too enigmatic for me. Not a good ( 'know-it-when-you-get-it') clue...
Sorry for late response - have been out playing Bridge (and gossip!) with friends!