leave the field clear for somebody

Từ điển Oxford Advanced Learner 8th

leave the field ˈclear for sb f7 | leave sb in possession of the ˈfield f7 idiom
to enable sb to be successful in a particular area of activity because other people or groups have given up competing with them
•The complete disarray of the opposition parties leaves the field clear for the government to implement urgent reforms.
Main entry: ↑field_idiom