mc5 - Obscure vault 99 (7)

It's the cryptic crossword discussion game. Tease each other with clues, help each other with the dailies, educate the beginners, whatever.

CdM's previous clue

[CdM] Possibly SELF-REFERENTIAL

Hidden text

[MF] Well, it might be nice for people who want to try solving something themselves after it's already been answered.

None

I was thinking of Darren's answer, but I think MF's first is every bit as good, which of course means the clue is flawed...

None

Doctor's wrapped up in umbilical cord

rab

Ka-ching

[MF] Congrats. I tried to make it more so, but failed!