Front page headline about power cut (6)
I believe the answer is:
splash
'front page headline' is the definition.
'splash' can be an answer for 'headline' (I've seen this before). I'm not sure about the 'front page' bit.
'about power cut' is the wordplay.
'about' means one lot of letters goes inside another.
'power' becomes 'p' (symbol in physics).
'cut' becomes 'slash' (slashing is a kind of cutting).
'p' put within 'slash' is 'SPLASH'.
Can you help me to learn more?
(Other definitions for splash that I've seen before include "Throw liquid about" , "A Bigger --, Hockney painting" , "Noise of a body falling into water" , "Dash with liquid" , "Watery sound" .)