Spoke right before a call (6)
I believe the answer is:
radial
'spoke' is the definition.
(I've seen this in other clues)
'right before a call' is the wordplay.
'right' becomes 'R' (common abbreviation).
'before' says to put letters next to each other.
'call' becomes 'dial' (I've seen this in other clues).
'r'+'a'+'dial'='RADIAL'
(Other definitions for radial that I've seen before include "Coming from centre" , "Emanating from a central point" , "tread on it" , "Like a starburst explosion" , "Sort of tyre" .)