Worries when American soldiers surrounding gallery (8)
I believe the answer is:
agitates
'worries' is the definition.
The definition and answer can be both to do with contact as well as being verbs in their -s form.
Maybe there's an association between them I don't understand?
'american soldiers surrounding gallery' is the wordplay.
'american' becomes 'a' (common abbreviation - e.g. in organisation names).
'soldiers' becomes 'GIs' (GI is an informal term for a US soldier).
'surrounding' is an insertion indicator.
'gallery' becomes 'tate' (Tate Modern, Tate Britain etc).
'gis' placed around 'tate' is 'gitates'.
'a'+'gitates'='AGITATES'
'when' acts as a link.
Can you help me to learn more?
(Other definitions for agitates that I've seen before include "Disturbs or stirs up political trouble" , "Disturbs, often politically" , "Tries to stir up public opinion" , "Upsets" .)