Cameron, perhaps fated to spill daughter's secret (11)
I believe the answer is:
clandestine
'secret' is the definition.
(synonyms)
'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).
'clan'+'destine'='CLANDESTINE'
'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.
Can you help me to learn more?
(Other definitions for clandestine that I've seen before include "through the backdoor" , "Secret" , "backroom" , "Done secretively" , "Send a client (anag) - covert" .)