Plant starts to yield under constant coercion, actually (5)
I believe the answer is:
yucca
'plant' is the definition.
'starts to yield under constant coercion actually' is the wordplay.
'starts to' says to take the initial letters.
The first letters of 'yield under constant coercion actually' is 'YUCCA'.
(Other definitions for yucca that I've seen before include "Popular house plant" , "American plant with tall stout stems" , "houseplant" , "Cassava" , "Garden plant from Mexico" .)