First to try lead part with singers in audition: they get a good reception (2,8)

I believe the answer is:

tv antennas

'they get a good reception' is the definition.

'first to try lead part with singers in audition' is the wordplay.
I cannot really understand how this works, but
'first' could be 'a' and 'a' is present in the answer.
'part' could be 'te' (te is a kind of part) and 'te' is found in the answer.
This explanation may well be incorrect...

I've seen this clue in The Guardian.

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