Stunned daughter stared, scratching head (5)
I believe the answer is:
dazed
'stunned' is the definition.
('daze' can be a synonym of 'stun')
'daughter stared scratching head' is the wordplay.
'daughter' becomes 'd'.
'stared' becomes 'gazed' ('gaze' can be a synonym of 'stare').
'scratching head' means to remove the first letter.
'gazed' with its initial letter taken away is 'azed'.
'd'+'azed'='DAZED'
(Other definitions for dazed that I've seen before include "Stupefied" , "In stunned confusion" , "Stunned or bemused" , "almost out" , "Stunned, confused" .)