The most common and most likely answer to this crossword clue is the 9 letter word GREATCOAT
I've seen this crossword clue in The Guardian
G
R
E
A
T
C
O
A
T
More clues leading to the result GREATCOAT
- Get actor embarrassed without a piece of clothing
- Petersham's much-admired film?
- Worry, getting cold, with little money around – warm clothing required
- Garment down a hundred in old money
- Get actor a bizarre item of clothing
- A cottage gets plastered, keeping right winter protection
- What a soldier may be seen wearing in much admired film
- Animal crate assembled and put in warm covering
- Fantastic paint that might be put on outside?
- Get actor a bespoke item from wardrobe
Buddy explains!

The straight part
We know that "winter protection" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case winter protection = greatcoat.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does GREATCOAT mean?
GREATCOAT noun- A heavy overcoat.