Grouse to arrive shortly on prairie (8)
I believe the answer is:
complain
'grouse' is the definition.
(I know that grouse is a more specific form of the action complain)
'arrive shortly on prairie' is the wordplay.
'arrive' becomes 'come' (coming is a kind of arriving).
'shortly' means to remove the last letter.
'on' means one lot of letters go next to another.
'prairie' becomes 'plain' (I've seen this in another clue).
'come' with its final letter taken away is 'com'.
'com'+'plain'='COMPLAIN'
'to' acts as a link.
(Other definitions for complain that I've seen before include "Grouse, grumble" , "Bellyache" , "Express dissatisfaction" , "Grumble, moan" , "Bemoan" .)