Pamper daughters protected by old king (6)
I believe the answer is:
coddle
'pamper' is the definition.
(synonyms)
'daughters protected by old king' is the wordplay.
'daughters' becomes 'dd' (I've seen this in other clues).
'protected by' indicates putting letters inside.
'old king' becomes 'cole' (I've seen this in another clue).
'dd' going into 'cole' is 'CODDLE'.
(Other definitions for coddle that I've seen before include "Treat overprotectively" , "Pamper with traditional Dublin food dish" , "Pamper, over-indulge" , "Cook (egg) in water below boiling point" , "baby" .)