The most common and most likely answer to this crossword clue is the 7 letter word JINGLED
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Buddy explains!
The straight part
We know that "Sounded like Christmas bells" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sounded like christmas bells = jingled.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 JINGLED mean?
JINGLED verb- To make a noise of metal or glass clattering against itself.
- To cause to make a noise of metal or glass clattering against itself.
- To rhyme or sound with a jingling effect.