You may be able to remove the elevator and fill in the slots that may be there with epoxy, smoth it out, then slot it for pinned hinges rather than CA hinges. If you do it right, and carefully, you may be able to fix it easy enough with minimal covering removal. You can most likely remove it from the trailing edge of the wing to coat it, pressing in the epoxy to fill in gaps and old slots, smooth it out, as I said, then fit the pinned hinges in both sides.

I'm sure someone will have an alternate method, that's just my cut on it.

CGr.