Continuing to get marked around America (9)
I believe the answer is:
sustained
'continuing' is the definition.
(similar in meaning)
'marked around america' is the wordplay.
'marked' becomes 'stained' (I've seen this before).
'around' means one lot of letters goes inside another.
'america' becomes 'US' (United States).
'stained' going around 'us' is 'SUSTAINED'.
'to get' is the link.
(Other definitions for sustained that I've seen before include "Steadily maintained" , "Long drawn-out" , "Kept (something) going" , "prolonged" , "Kept going, supported" .)