Shocker, almost. In the morning university detective's in to fish (10)
I believe the answer is:
barramundi
'to fish' is the definition.
(I've seen this before)
'shocker almost in the morning university detective's' is the wordplay.
I cannot quite understand how this works, but
'morning' could be 'am' and 'am' is found in the answer.
'university' could be 'u' (abbreviation for university) and 'u' is present in the answer.
'detective' could be 'di' (Detective Inspector abbreviation) and 'di' is present in the answer.
This explanation may well be incorrect...
'in' is the link.
Can you help me to learn more?
(Another definition for barramundi that I've seen is " Australian fish".)