Hopes training includes vermin (4)
I believe the answer is:
pest
'vermin' is the definition.
'hopes training includes' is the wordplay.
'includes' says the answer is hidden in the clue.
'PEST' is hidden within 'hopes training'.
(Other definitions for pest that I've seen before include "Disease with a high death rate" , "Annoying thing" , "Nuisance; half a European capital" , "Destructive insect or nuisance" , "Constant nuisance" .)