Crossword Genius

Sort of road test after component has been installed (7)

Ross

I believe the answer is:

orbital

'sort of road' is the definition.
(term for a ring road)

'test after component has been installed' is the wordplay.
I cannot quite see how this works, but
'component' could be 'bit' and 'bit' is present in the answer.
'test' could be 'oral' (oral is a type of examination) and 'oral' is located in the remaining letters.
No letters remain.
This explanation may well be incorrect...

(Other definitions for orbital that I've seen before include "Following a path around a heavenly body" , "Like a sort of road" , "Going round the world" , "Going round - the M25?" , "going round the city" .)

I've seen this clue in The Times.
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