Spirit needed for a rambling trip in the south-east (6)
I believe the answer is:
sprite
'spirit' is the definition.
(thesaurus)
'a rambling trip in the south-east' is the wordplay.
'a rambling' indicates an anagram.
'in the' means one lot of letters goes inside another.
'south east' becomes 'SE' (abbreviation).
'trip' anagrammed gives 'prit'.
'prit' put into 'se' is 'SPRITE'.
'needed for' acts as a link.
(Other definitions for sprite that I've seen before include "Puck, say" , "Dainty type" , "Naiad" , "Elf, fairy" , "water pixie" .)