The most common and most likely answer to this crossword clue is the 6 letter word TUSSLE
I've seen this crossword clue in Financial Times
T
U
S
S
L
E
More clues leading to the result TUSSLE
- Scrap oldest US sleeping bags
- In brief, Egyptian king less prepared for fight
- Struggle if lust’s uncontrolled? To a point
- Worrying lest invaded by American fighting
- Conflict kept us sleepless essentially
- Finally get you, spineless as usual, inside fight
- Scrap damaged lute outside craft
- Organisation of workers produced less conflict
- Lusts wickedly and earl creates conflict
- Struggle lets us get liberated
Buddy explains!

The straight part
We know that "Struggle" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case struggle = tussle.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 TUSSLE mean?
TUSSLE noun- A physical fight or struggle.
- A conflict, an argument, a disagreement.
- To have a tussle.