1a) Mark snares American bear (7)
2d) What's tightened in City crisis and leafy Surry? (11,4)
5a) Drive the disheartened enemy over end of cliff (3,3)
5d) Handling complex matter at top medical department (9)
7d) Stray flak settles twice round one UK territory (8,7)
Apology for no letters. All hep much appreciated.