Last goal not oddly hurried (6)
I believe the answer is:
endure
'last' is the definition.
(I know that last can be written as endure)
'goal not oddly hurried' is the wordplay.
'goal' becomes 'end' (both can mean a purpose).
'not oddly' means one should take alternating letters (odd letters are removed).
The alternating letters of 'hurried' are 'ure'.
'end'+'ure'='ENDURE'
(Other definitions for endure that I've seen before include "survive" , "Continue to exist" , "Last or undergo" , "'Last, prevail (6)'" , "brook" .)