Eggs rated defective making one very surprised (9)
I believe the answer is:
staggered
'very surprised' is the definition.
'staggered' can be an answer for 'surprised' (thesaurus). I'm not sure about the 'very' bit.
'eggs rated defective' is the wordplay.
'defective' indicates anagramming the letters.
'eggs'+'rated'='eggsrated'
'eggsrated' anagrammed gives 'STAGGERED'.
'making one' is the link.
Can you help me to learn more?
(Other definitions for staggered that I've seen before include "Deeply shocked or walked unsteadily as if about to fall" , "Arranged to take place at intervals" , "not to be starting together" , "Lurched, reeled" , "Did floor" .)