Barnacle
24a - usual abbrev of creditor outside 4-letter 'former' + usual 'new' - definition last word
39a - this parses as 1 + 3 + 2 +1. you need a dialect word for 'girl'. Definition, with misprint, at the end.
49a - You need a 4-letter 'shine' with the end missing; a 4-letter abbrev for 'pledges given'; with usual 'river' inside somewhere. (ie it parses 3 + 4 with a single letter inserted). Definition, at the end, has a misprint.