The most common and most likely answer to this crossword clue is the 6 letter word STOKES
S
T
O
K
E
S
More clues leading to the result STOKES
- Groups returned, importing satisfactory fuels
- England’s all-rounder gets all fired up
- Fires up superstar on the pitch?
- City’s cricketer keeps burning
- Physicist puts up with satisfactory input
- To take a puff on board adds fuel to the fire
- Cricketer all right in second test almost to the end
- Provides coal for scientific unit
Buddy explains!

The straight part
We know that "Physicist" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case physicist = stokes.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 STOKES mean?
STOKES verb- To poke, pierce, thrust.
- To feed, stir up, especially, a fire or furnace.
- (by extension) To encourage a behavior or emotion.
- To attend to or supply a furnace with fuel; to act as a stoker or fireman.
- A unit of kinematic viscosity in the CGS system of units. 1 stokes = 1 cm2/s