The most common and most likely answer to this crossword clue is the 8 letter word EXPONENT
I've seen this crossword clue in The Times
E
X
P
O
N
E
N
T
More clues leading to the result EXPONENT
- No longer confined, holding on for advocate?
- Old adversary giving up work as interpretative artist
- Former adversary deprived of work, a symbol of power
- Advocate symbol of power
- Possibly next Open champion
- The power of mathematics
- Power one’s written next to variable in base ten?
- Performer I put under pressure in next upset
- Illustration of former French bridge around North East
- Could be next Open champion, perhaps
Buddy explains!

The straight part
We know that "interpretative artist" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case interpretative artist = exponent.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 EXPONENT mean?
EXPONENT noun- One who expounds, represents or advocates.
- The number by which a value (called the base) is said to be raised to a power in exponentiation: for example, the 3 in 2^3=8.
- The degree to which the root of a radicand is found, for example, the 2 in \sqrt[2]r=b.
- A manifestation of a morphosyntactic property.
- The part of a floating-point number that represents its exponent value.