No but I think you might be homing in on the idea.
The title has four words and the clue covers three of them, overlooking the indefinite article.
A chump at Oxford?
Yes! Well done.
You learn something new every day - I’d no idea that another word for a lamb chop was a chump. I should have got the up (at university) part a bit earlier though. Going for what’s hopefully an easy one this time:
‘ancock cusses at ‘is best pal…
Haven’t a clue.
The clue is from a television series that ran between 1956 and 1960. By coincidence the well known film was released not long after that…
El Cid
(Haven’t a clue was regarding Devos obscure one)
Start grinding aged biscuit.
Tricked me into giving an extra clue there Arena 
Well done anyway…
Goldfinger?
You’ve got it Amac… 
Thanks Arena. Next up:
Me, telling off Mr. Ferguson??!?
Getting Mr Ferguson’s first name might help a lot here…
After Alec, Ronald, Duncan and Craig, I’m struggling.
One of them is right apart from the (important) spelling…
Clips from this film were used in adverts for two different beer companies in the 1980s, one German and one Danish.
Ice Cold In Alex
Well done Devo, you’ve got it 
(I scolding Alex)
Over to you again.
Thanks,
990ml
This is almost a case of ‘Say what you see’.