The most common and most likely answer to this crossword clue is the 8 letter word STEADILY
I've seen this crossword clue in The Times
S
T
E
A
D
I
L
Y
More clues leading to the result STEADILY
- Unexpected delay — sit without jiggling around
- Member of CID’s in nick with Yankee regularly
- It delays working in a controlled way
- Consistently set daily puzzle
- Anagram set daily in consistent manner
- Lydia set to be going out … thus with boyfriend?
- It delays getting drunk with regularity
- It delays travelling round the clock
- Girlfriend accepting one source of lie in a constant manner
- Yes, tidal waves are seen regularly
Buddy explains!

The straight part
We know that "without jiggling around" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case without jiggling around = steadily.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 STEADILY mean?
STEADILY adverb- In a steady manner.