Fresh chap is cracked (6)

I believe the answer is:

justin

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'fresh chap' is the definition.
'Justin' can be an answer for 'chap'. I am not certain of the 'fresh' bit.

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for justin that I've seen before include "-- Timberlake, singer" , "Boy's name" , "Boy" .)

I've seen this clue in The Irish Times.

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