Crop harvested in island, sign of winter’s arrival (9)
I believe the answer is:
capricorn
'sign of winter's arrival' is the definition.
'Capricorn' can be an answer for 'sign' (a sign of the zodiac). I am not certain of the 'of winter's arrival' bit.
'crop harvested in island' is the wordplay.
I cannot really understand how this works, but
'crop' could be 'corn' (a farmer's crop of corn) and 'corn' is present in the answer.
'island' could be 'capri' (Italian island) and 'capri' is found in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for capricorn that I've seen before include "Tropic - Zodiac sign" , "Sign of winter" , "7 [SIGN OF THE ZODIAC]" , "Goat star sign" , "Constellation known as The Goat" .)