Retreat official - fancy resistance's given way (6)
I believe the answer is:
refuge
'retreat' is the definition.
(I've seen this in another clue)
'official fancy resistance's given way' is the wordplay.
'official' becomes 'ref' (match official in football, say).
'fancy resistance's given' becomes 'ug' (I can't explain this - if you can you should believe this answer much more).
'way' becomes 'e' (Compass direction - East).
'ref'+'ug'+'e'='REFUGE'
Can you help me to learn more?
(Other definitions for refuge that I've seen before include "Safe haven" , "we aim for on the way?" , "Place of safety" , "The sort of shelter" , "Traffic island" .)