Son had hallucinations laid bare (8)
I believe the answer is:
stripped
'laid bare' is the definition.
('strip' can be a synonym of 'lay bare')
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for stripped that I've seen before include "Removed paint - or clothes" , "behaved 'naughtily' in club?" , "having no gear" , "Deprived of cover" , "Undressed" .)