Oscar has much appreciated metal band lining neckwear for joint support (7,4)

'oscar has much' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'appreciated metal band lining neckwear for joint support' is the wordplay.
I cannot really understand how this works, but
'appreciated' could be 'ta' (I've seen this in other clues) and 'ta' is present in the answer.
'metal' could be 'u' (U is an example) and 'u' is found in the answer.
'band' could be 'torc' (I've seen this before) and 'torc' is found in the answer.
an anagram of 'for' is 'rof' which is located in the remaining letters.
A single letter 'f' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?