They make good theatre — broadcast with reprise, even (9)

'they' is the definition.
Both the answer and definition are plural nouns.
Maybe they are linked in a way I don't understand?

'good theatre broadcast with reprise even' is the wordplay.
'good theatre' becomes 'rep' (I've seen this in other clues. I am not sure about the 'good' bit.**).
'broadcast' becomes 'air' ('air' can be a synonym of 'broadcast').
'with' says to put letters next to each other.
'even' indicates alternate letters (even-numbered letters are used).
The alternating letters of 'reprise' are 'ers'.
'rep'+'air'+'ers'='REPAIRERS'

'make' is the link.

Can you help me to learn more?