Crossword Genius

Light hit lover with force on head (8)


I believe the answer is:


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Here is my best explanation:

'light' is the definition.
(flambeau is a kind of light)

'hit lover with force on head' is the wordplay.
'hit' becomes 'lam' (to 'lam' means to hit hard).
'lover' becomes 'beau' (beau is a kind of lover).
'with force' becomes 'f' (symbol used in Physics e.g. f=ma. I am not sure about the 'with' bit.**).
'on head' means one lot of letters go next to another.
'lambeau' after 'f' is 'FLAMBEAU'.

Can you help me to learn more?

This clue was last seen in The Guardian