The most common and most likely answer to this crossword clue is the 7 letter word ATINGLE
I've seen this crossword clue in The Guardian
A
T
I
N
G
L
E
More clues leading to the result ATINGLE
- Excited, sitting by the fire?
- Thrilled visiting site of a fire
- … feeling excited, investigating learner’s part
- Quivering with delight due to funny tag line
- Feeling funny eating lettuce sandwiches
- Feeling strangely warm beside fireplace
- No good wearing a hat, but one’s all thrilled
- Excited in skating lesson
Buddy explains!

The straight part
We know that "Quivering with delight" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case quivering with delight = atingle.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.