Crossword Genius

It's ice on the peak, you fool! (9)


I believe the answer is:


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'you fool' is the definition.
'blockhead' can be an answer for 'fool' (I've seen this in another clue). I am not sure about the 'you' bit.

'it's ice on the peak' is the wordplay.
'it's ice on' becomes 'block' (I can't justify this - if you can you should give a lot more credence to this answer).
'the peak' becomes 'head' (head is a kind of peak).

Can you help me to learn more?

(Other definitions for blockhead that I've seen before include "Stupid person" , "Dolt" .)

I've seen this clue in the Evening Standard.
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