The most common and most likely answer to this crossword clue is the 8 letter word THICKSET
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More clues leading to the result THICKSET
- Very friendly group in squat
- Stocky bumpkins in first part of trashy film
- Solid group of pupils without academic qualities?
- Mindless television, like The Hulk?
- Dense group of trees in which little son hides
- Burly but brainless band
- Stocky countryman, in challenging situation, being done over
- Burly group of pupils unlikely to get good grades
- Not a very bright lot, but sturdy
- Stocky rednecks entertained by festival
Buddy explains!

The straight part
We know that "muscular" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case muscular = thickset.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 THICKSET mean?
THICKSET noun- A thick hedge.
- A stout, twilled cotton cloth; a fustian corduroy, or velveteen.
- A piece of clothing made from this fabric.
- Having a relatively short, heavy build.
- Densely crowded together; made up of things that are densely crowded together; closely planted.
- Densely covered (with something).