The most common and most likely answer to this crossword clue is the 8 letter word SEESAWED
S
E
E
S
A
W
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Buddy explains!
The straight part
We know that "Swung" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case swung = seesawed.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 SEESAWED mean?
SEESAWED verb- To use a seesaw.
- (by extension) To fluctuate.
- To cause to move backward and forward in seesaw fashion.