Highest old tree Frenchman cuts (7)
I believe the answer is:
extreme
(Other definitions for extreme that I've seen before include "Going to great lengths" , "Of the greatest intensity" , "too much" , "Acute, maximum" , "Unrestrained" .)
I believe the answer is:
extreme
(Other definitions for extreme that I've seen before include "Going to great lengths" , "Of the greatest intensity" , "too much" , "Acute, maximum" , "Unrestrained" .)