That's what I was wondering Gloria if you were speaking of an Unlisted Profile. Short of George's idea, which is really a good idea, you could grant them Trusted List access with the express agreement that they make no changes without conferring with you first, whether this be to the Biography and Sources or Linking to another Profile. If they should do so, you can use the Restore Function in the Changes Tab remove any changes or unlink a suspect Family Link and then remove them from the Trusted List.
If still unsure of their intentions, how about doing a Screen Print of the Profile and paste that from the Clipboard to an email and send them that for their perusal. They get to see the data, but can't change anything.