Stick to pale daughter (4)
I believe the answer is:
wand
'stick' is the definition.
(a wand is a small stick)
'pale daughter' is the wordplay.
'pale' becomes 'wan' (wan can mean pale or grey).
'daughter' becomes 'd' (genealogical abbreviation).
'wan'+'d'='WAND'
'to' is the link.
(Other definitions for wand that I've seen before include "Magical staff" , "Magician's prop" , "Fairy's stick" , "spelling aid" , "Dawn (anag.)" .)