Help Needed Please

[michaeljhoward]

Everyman crossword No. 4066, The Observer Sunday 22 September 2024.

'Thawed, 99 disappearing - a performance (4)'. I've got deed but don't understand the 99 part.

'Aquatic being, part of Little Mermaid toy that's caught (7)'. I've got Dolphin but cannot parse.

'Record changing dash for cash(4)'. I've got disc but cannot parse the dash for cash part.

 

Thanks in advance.

 

[roslyn251254]

de ic ed...    ic  roman numerals for 99

[newmodarmy]

De- iced minus the ic  .....99 in roman

[newmodarmy]

D is C

The D becomes a C

[newmodarmy]

Toy is doll.

Sounds like ( caught) DOL Fin