Daughter scans fears (6)
I believe the answer is:
dreads
'fears' is the definition.
(I know this)
'daughter scans' is the wordplay.
'daughter' becomes 'd' (genealogical abbreviation).
'scans' becomes 'reads' ('read' can be a synonym of 'scan').
'd'+'reads'='DREADS'
(Other definitions for dreads that I've seen before include "Worries about" , "Anticipates with horror" , "Looks ahead with apprehension" , "Sadder (anag)" , "Is terrified" .)