Design of new drone acclaimed (8)
I believe the answer is:
renowned
'acclaimed' is the definition.
(thesaurus)
'design of new drone' is the wordplay.
'design of' is an anagram indicator (I've seen this in other clues).
'new'+'drone'='newdrone'
'newdrone' anagrammed gives 'RENOWNED'.
(Other definitions for renowned that I've seen before include "Widely respected" , "Famous, celebrated" , "Distinguished" , "Prominent" , "Widely known and esteemed" .)