Christmas crossword: Organic Message

Down clues and entries are normal. Across clues have normal definitions but wordplays that omit a single letter from each answer, whose enumeration is given, and whose reduced form must be entered in the grid. Read in clue order, omitted letters spell out an Organic Message.

Download a printable version here.

Across

1               Mistress fixed this South African town (9)

7               Architect cycles to revive (5)

10            Allure of extremely adept discretion (7)

14            Worry bully, humiliate oneself (3,4)

16            Prepared study (5)

17            Escort gold checker briefly (8)

18            Rebuke solver after identical working (5,2,3)

19            Garnish good oatmeal rolls (9)

21            Somehow rids Co-op of arachnids? (9)

22            Fuss follows...