Retreat official - fancy resistance's given way (6)
I believe the answer is:
refuge
'retreat' is the definition.
(thesaurus)
'official fancy resistance's given way' is the wordplay.
'official' becomes 'ref' (match official in football, say).
'fancy resistance's given' becomes 'ug' (I am not sure about this - if you are sure 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" .)