Ran up with scold to tell (7)
I believe the answer is:
narrate
'tell' is the definition.
(synonyms)
'ran up with scold' is the wordplay.
'up' shows that the letters should be reversed in order (in down clue: letters go upwards).
'with' is a charade indicator (letters next to each other).
'scold' becomes 'rate' (I've seen this before).
'ran' reversed gives 'nar'.
'nar'+'rate'='NARRATE'
'to' acts as a link.
(Other definitions for narrate that I've seen before include "Relate events" , "Read" , "Give a spoken account" , "Chronicle" , "tell tales" .)