Zap
'zap' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for irradiate that I've seen before include "Make bright" , "Shine light on" , "Shed light on" , ""One fine day" would do" .)
'zap' is the definition.
(I know that zap can be written as nuke)
This is all the clue.
(Other definitions for nuke that I've seen before include "Nuclear weapon (sl.)" , "Attack with an atomic weapon" , "Attack with H-bomb (slang abbr.)" , "Destroy with a very powerful 18" , "Drop huge bomb on" .)