Drive miles up to resort (7)
I believe the answer is:
impulse
'drive' is the definition.
(impulse is a kind of drive)
'miles up to resort' is the wordplay.
'to resort' is an anagram indicator.
'miles'+'up'='milesup'
'milesup' anagrammed gives 'IMPULSE'.
(Other definitions for impulse that I've seen before include "Sudden urge to do something" , "A sudden inclination to act (7)" , "Drive" , "Impel us with sudden urge" , "I may cause desire" .)