The most common and most likely answer to this crossword clue is the 9 letter word MODERNIST
I've seen this crossword clue in Independent
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More clues leading to the result MODERNIST
- Way sailors misguidedly sit for someone like Picasso?
- Person in movement stormed in furiously
- One favouring what’s new, first seen by river in Minnesota
- Avant-garde artist stormed in drunk
- Breaking from tradition, stormed in wildly
- Nurse I introduced to Mussorgsky contemporary
- Witticism about actor Bruce is in the current style
- Non-traditional sort teary about actress Laura
Buddy explains!

The straight part
We know that "One favouring what’s new" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one favouring what’s new = modernist.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 MODERNIST mean?
MODERNIST noun- A follower or proponent of modernism.
- Of, or relating to modernism.
- Pertaining to the culinary arts of molecular gastronomy