Stress about computing electronic score (9)
I believe the answer is:
reiterate
'stress' is the definition.
(both can mean to emphasise)
'about computing electronic score' is the wordplay.
'about' becomes 're' (regarding).
'computing' becomes 'it' (IT is an abbreviation for Information Technology).
'electronic' becomes 'e' (as in e-mail or e-books).
'score' becomes 'rate' (I've seen this in another clue).
're'+'it'+'e'+'rate'='REITERATE'
(Other definitions for reiterate that I've seen before include "Restate" , "sound twice?" , "Recapitulate" , "Say again or repeatedly" , "Say it again for tire eater" .)