Precision displayed by iconic E-type (6)
I believe the answer is:
nicety
'precision' is the definition.
(I've seen this before)
'displayed by iconic e-type' is the wordplay.
'displayed by' says the answer is hidden in the clue.
'NICETY' can be found hidden inside 'iconic e type'.
(Other definitions for nicety that I've seen before include "Subtle point of distinction" , "Nuance - icy net (anag)" , "Minute distinction; subtlety" , "Judge to a . . . . . . - with precision" , "Small detail" .)