The most common and most likely answer to this crossword clue is the 5 letter word SONIC
I've seen this crossword clue in Financial Times
S
O
N
I
C
More clues leading to the result SONIC
- Very fine short name for a hedgehog?
- Boy in charge of sound
- Description of aural event very pleasant, mostly
- Sort of boom very pleasant, having no end
- Very fast boy I caught
- Very pleasant, with no end of sound
- Like some booms, not quite as enjoyable
- Really pleasant, endless sort of boom
- Travelling at about 700 mph is so pleasant for the most part
- In over after second over, caught an animated, prickly character
Buddy explains!
The straight part
We know that "Travelling at about 700 mph" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case travelling at about 700 mph = sonic.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 SONIC mean?
SONIC adjective- Of or relating to sound.
- Having a speed approaching that of the speed of sound in air.