Last two.
10 across - Mild oath about meeting a gnome (5) G?A?E
16 across - Wallace protagonist of Portuguese descent caught in dodgy saloon (7) N?L?S?O...
13 down - Adventurer that is seen between times in summer and spring (5,5) ??G?E?A?C?
17 down - Random lover returned as in this way and carried on (8) N?R?I???...