Delivered new patent having lethal weaponry? (7)
I believe the answer is:
nuclear
'having lethal weaponry?' is the definition.
I can't judge whether this definition defines the answer.
'delivered new patent' is the wordplay.
'delivered' indicates a 'sounds like' (homophone) clue (delivered verbally).
'patent' becomes 'clear' (synonyms).
'new' is a homophone of 'nu'.
'nu'+'clear'='NUCLEAR'
Can you help me to learn more?
(Other definitions for nuclear that I've seen before include "Relating to atomic energy" , "winter, sort of" , "Like some physics" , "Relating to fission or fusion" , "An ulcer (anag)" .)