It gets a fellow called 'Sir' (8)
I believe the answer is:
accolade
'called sir' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'it gets a fellow' is the wordplay.
I cannot really see how this works, but
'it' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is found in the answer.
'a' is within the answer.
'fellow' could be 'lad' (synonyms) and 'lad' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for accolade that I've seen before include "Award, originally of knighthood" , "Sign or expression of great praise or approval" , "Great praise or elevation to knighthood" , "Ceremonial tap of sword on shoulder when conferring knighthood" , "High praise" .)