Relay broadcast ahead of time (5)

I believe the answer is:

early

'ahead of time' is the definition.
('early' can be a synonym of 'ahead of time')

'relay broadcast' is the wordplay.
'broadcast' is an anagram indicator.
'relay' anagrammed gives 'EARLY'.

(Other definitions for early that I've seen before include "near beginning" , "Before the ETA" , "and 26: Too soon to be sure" , "Advanced" , "Untimely" .)

I've seen this clue in The Independent.

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