Christian name shared by the singer of Mötley Crüe and a fedora-wearing former Liberal Democrat leader (5)

'christian' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'name shared by the singer of motley crue and a fedora-wearing former liberal democrat leader' is the wordplay.
I cannot really see how this works, but
'name' could be 'vin' and 'vin' is found within the answer.
'leader' could be 'e' (I've seen this in other clues) and 'e' is present in the answer.
A single letter 'c' remains which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?