IT device firm silent about parking by right (8)
I believe the answer is:
computer
'it device' is the definition.
The definition suggests a singular noun which matches the answer.
'firm silent about parking by right' is the wordplay.
I cannot quite understand how this works, but
'firm' could be 'co' (a firm is a company) and 'co' is located in the answer.
'parking' could be 'p' (abbreviation on road signs) and 'p' is found in the answer.
'silent' could be 'mute' (synonyms) and 'mute' is present in the leftover letters.
'right' could be 'r' (abbreviation) and 'r' is found within the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for computer that I've seen before include "Comer put out by data processing machine" , "Electronic calculator" , "Curt poem about electronic machine" , "Machine for calculating and storing data" , "Eg, PC" .)