See the light, maybe, while providing fuel to the Italian parliamentarian (3,4)
I believe the answer is:
oil lamp
'see the light maybe while' is the definition.
I can't tell whether this definition defines the answer.
'fuel to the italian parliamentarian' is the wordplay.
'fuel' becomes 'oil' (oil is a type of fuel).
'to the italian' becomes 'la' ('the' in Italian).
'parliamentarian' becomes 'MP' (Member of Parliament).
'oil'+'la'+'mp'='OIL-LAMP'
'providing' acts as a link.
Can you help me to learn more?
(Other definitions for oil lamp that I've seen before include "Early means of illumination" , "Light that burns kerosene" .)