It's alphabetical jigsaw, so no crossers to help until some answers filled in....there will be a spare letter in the wordplay.. 6. Dare to laugh guarding small marked space. (6) extra wordplay... ...
wordplay has an extra letter or a letter missing... 30d Nurse cycling for a very long time (4) E??S looks like EONS 17d Cuckoo clock department shelled (7) ?O?KL?? COCKLED? angaram of clock +... ...