Cameron, perhaps fated to spill daughter's secret (11)
I believe the answer is:
Here is my best explanation:
'secret' is the definition.
'cameron perhaps fated' is the wordplay.
'cameron perhaps' becomes 'clan' (Clan Cameron is a Scottish clan).
'fated' becomes 'destine' (I can't justify this - if you can you should believe this answer much more).
'to spill daughter's' acts as a link.
This may not be correct. Some or all of it may belong to another bit of the clue.