You and I objectively backing computer department proceedings (4)
I believe the answer is:
suit
'proceedings' is the definition.
(suit is a kind of proceedings)
'you and i objectively backing computer department' is the wordplay.
I cannot quite understand how this works, but
'you' could be 'u' (I've seen this in other clues) and 'u' is present in the answer.
'i' is present in the answer.
The remaining letters 'st' is a valid word which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for suit that I've seen before include "See 10" , "Become" , "Legal action - courtship" , "clubs, say" , "One of four in a pack" .)