Recommend (strongly) (4)
I believe the answer is:
urge
'recommend strongly' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for urge that I've seen before include "Encourage to go on, goad" , "Implore" , "Strongly recommend; impulse" , "Advise earnestly, spur" , "Strong impulse, desire" .)