The most common and most likely answer to this crossword clue is the 9 letter word INGLENOOK
I've seen this crossword clue in The Times
I
N
G
L
E
N
O
O
K
More clues leading to the result INGLENOOK
- Visiting valley? Fine to gather round chimney corner
- Warm corner in valley by old well
- Evidently valley life all bad — but this corner’s cosy
- Niche markets’ essential element? Go online to analyse first
- Head off alone with no approval for cosy corner
- Hot spot — one without front gets disapproval
- Nigel excited by new reading material heading off for a seat by the fire
- German leader is welcomed by devious Lenin round fine fireplace
Buddy explains!

The straight part
We know that "chimney corner" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case chimney corner = inglenook.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 INGLENOOK mean?
INGLENOOK noun- A nook or corner beside an open fireplace; a chimney corner.