19 - Is a word I haven't seen before, hankir - it starts with 'character' in the theatrical sense (4 letters, the first letter 'r' is extra) + a two word phrase for 'continued' (3,2) around C(old).
1 and 4 Down both get entered normally. 7 D is hidden in the clue, then scrambled. In 1 D the 'butter' is an animal, after a four-letter word for 'succeed in getting'.