The most common and most likely answer to this crossword clue is the 7 letter word WARLOCK
I've seen this crossword clue in Financial Times
W
A
R
L
O
C
K
More clues leading to the result WARLOCK
- Sorcerer returning natural hair
- Wizard’s fighting something hairy
- Magician’s struggle to get embrace
- Fight for bit of hair belonging to wizard
- Magician — one securing the action?
- Magician in conflict over door fastening
- It’s offensive to restrain the ju ju man
- Fighting security measure, he may leave you spellbound
Buddy explains!

The straight part
We know that "Magician" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case magician = warlock.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 WARLOCK mean?
WARLOCK noun- A male magic-user; a male witch.