Nice article set off sparks (11)
I believe the answer is:
electrician
'sparks' is the definition.
(I've seen this before)
'nice article set off' is the wordplay.
'set off' indicates anagramming the letters.
'nice'+'article'='nicearticle'
'nicearticle' with letters rearranged gives 'ELECTRICIAN'.
(Other definitions for electrician that I've seen before include "One who might wire a house" , "Installer of wiring, etc" , "One wiring house" , "One who might install mains wiring" , "Installer of mains-powered equipment" .)