Kindly begin turning north (6)
I believe the answer is:
benign
'kindly' is the definition.
(I've seen this before)
'begin turning north' is the wordplay.
'turning' is an anagram indicator.
'north' becomes 'n' (abbreviation).
'begin' anagrammed gives 'benig'.
'benig'+'n'='BENIGN'
(Other definitions for benign that I've seen before include "Medically curable" , "Kindly, pleasant" , "Favourable" , "Liberal" , "Mild and gentle, not malignant" .)