In haste, Eric has to drive (5)
I believe the answer is:
steer
'to drive' is the definition.
(I've seen this before)
'in haste eric has' is the wordplay.
'has' indicates the answer is hidden within the clue.
'STEER' is hidden in the letters of 'in haste eric'.
(Other definitions for steer that I've seen before include "Guide the bull" , "cox" , "piece of advice" , "What cowboys try to do to" , "Guide (a ship, car, etc)" .)