Industry's foremost visionary cleared out plant (3)
I believe the answer is:
ivy
'plant' is the definition.
(ivy is a plant)
'industry's foremost visionary cleared out' is the wordplay.
'foremost' suggests taking the first letters.
'cleared out' suggests removing the centre.
'visionary' with its middle taken out is 'vy'.
The first letter of 'industrys' is 'i'.
'i'+'vy'='IVY'
(Other definitions for ivy that I've seen before include "The ... League comprises USA's top universities" , "Girl" , "Female" , "Song: 'Poison --'" , "Girl's name; climber" .)