Ideal type has to be handled (5)
I believe the answer is:
dealt
'handled' is the definition.
(dealing is a kind of handling)
'ideal type has' is the wordplay.
'has' says the answer is hidden in the clue.
'DEALT' is hidden within 'ideal type'.
'to be' is the link.
(Other definitions for dealt that I've seen before include "Doled out" , "Delta (anag.)" , "Handed out (cards)" , "Dispensed (cards)" , "Traded" .)