The most common and most likely answer to this crossword clue is the 5 plus 3 letter word ABOVE ALL
I've seen this crossword clue in Independent
A
B
O
V
E
A
L
L
More clues leading to the result ABOVE ALL
- Especially a black protective coat Romeo discarded
- Sailor almost in charge of everyone, primarily
- Primarily muscle around meat, nothing left
- Primarily a lovable rogue
- Almost ended within a social function, primarily
- At the end of the day, a lovable rogue
- Notably, a black smock Romeo discarded
- Chiefly coming from a lovable rogue
- Particularly the highest
- A loft towards the front stores meat primarily
Buddy explains!

The straight part
We know that "primarily" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case primarily = above all.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.