Show disapproval of US soldier over Eastern dance (6)
I believe the answer is:
boogie
'dance' is the definition.
(I've seen this before)
'show disapproval of us soldier over eastern' is the wordplay.
'show disapproval of' becomes 'boo'.
'us soldier' becomes 'gi' (I've seen this in other clues).
'over' means one lot of letters go next to another.
'eastern' becomes 'e'.
'boo'+'gi'+'e'='BOOGIE'
(Other definitions for boogie that I've seen before include "Dance (to pop music)" , "Rock'n'roll dance" , "Dance to jazz music" , "Piano blues style" .)