The most common and most likely answer to this crossword clue is the 4 letter word LEAP
I've seen this crossword clue in The Times
L
E
A
P
More clues leading to the result LEAP
- Sudden surge in energy-consuming circuit
- Bound to drink around end of race
- Bound with energy during circuit
- In Chile, a perfect spring
- Occasionally overlooked illegal parking in spring
- Look before you take such a year
- Each filled album’s bound
- Find within temple a painted vault
- Spring meadow close to Adlestrop
- Energy brought into circuit, taking an extra day?
Buddy explains!

The straight part
We know that "Bound" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case bound = leap.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 LEAP mean?
LEAP noun- The act of leaping or jumping.
- The distance traversed by a leap or jump.
- A group of leopards.
- A significant move forward.
- A large step in reasoning, often one that is not justified by the facts.
- A fault.
- Copulation with, or coverture of, a female beast.
- A passing from one note to another by an interval, especially by a long one, or by one including several other intermediate intervals.
- A salmon ladder.
- To jump.
- To pass over by a leap or jump.
- To copulate with (a female beast); to cover.
- To cause to leap.
- (calendar) Intercalary, bissextile.
- A basket.
- A trap or snare for fish, made from twigs; a weely.
- Half a bushel.