Hell! Limo hit pile of earth (8)
I believe the answer is:
molehill
'pile of earth' is the definition.
(pile of earth made by a mole)
'hell limo hit' is the wordplay.
'hit' is an anagram indicator.
'hell'+'limo'='helllimo'
'helllimo' is an anagram of 'MOLEHILL'.
(Other definitions for molehill that I've seen before include "blemish on lawn" , "uprising put down by spy" , "? It's what the Italian found in Flanders" , "Mound of earth in garden" , "Burrower's mound, ruining the lawn" .)