Crossword Genius

Train user to reset a computer, finally (8)

Ross

I believe the answer is:

eurostar

'train' is the definition.
(I've seen this before)

'user to reset a computer finally' is the wordplay.
'reset' indicates anagramming the letters.
'finally' indicates one should take the final letters.
The last letter of 'computer' is 'r'.
'user'+'to'='userto'
'userto' anagrammed gives 'eurost'.
'eurost'+'a'+'r'='EUROSTAR'

(Other definitions for eurostar that I've seen before include "travel service" , "The train from England to France" , "International traveller" , "Channel tunnel rail service" , "International train" .)

I've seen this clue in The Independent.
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