People wander, heading north over island (5)
I believe the answer is:
maori
'people wander heading north over island' is the definition.
I can't tell whether this definition defines the answer.
'wander heading north over island' is the wordplay.
'wander' becomes 'roam' (synonyms).
'heading north' shows that the letters should be reversed in order (in a down clue, letters go up).
'over' is a charade indicator (letters next to each other) (in a down clue, some letters go over others).
'island' becomes 'i' (geographical abbreviation).
'roam' in reverse letter order is 'maor'.
'maor'+'i'='MAORI'
Can you help me to learn more?
(Other definitions for maori that I've seen before include "Native language of NZ" , "Polynesian aboriginal" , "Native Kiwi" , "A native from the south" , "Cook Islander" .)