7d: Architectural design that is definitely not mouldy. 5 letters. ??o??
8d: Doing it with style. 8 letters. ??e???c?
Not something allowed to 27 across. 6 letters. e?l?i? ( 27 across is dieters)
21d: Sounds like where you might go in Ukraine for a 26across. 6 letters. ?t???e. ( 26a clue is: down at heel on the hike. 5 letters. t?a??)