help with just a few please

[Gunjams]

Stalemate has affected deal in harbour (8) ,
Fellow follows to claim some antimatter (8)
and Coordinate sentence in report (5)
thanks in advance

[vallaw]

deadlock

[Gunjams]

thanks but how about these 2 too
Fellow follows to claim some antimatter (8)
and Coordinate sentence in report (5)

[vallaw]

do you have any letters?

[vallaw]

positron

[Gunjams]

Fellow follows to claim some antimatter (8) _ O _ _ _ _ _ _
not many sorry

[aelmpvw]

align ... but i dont know why

[Zeitguy]

Fellow follows to claim some antimatter (8) _ O _ _ _ _ _ _
not many sorry = Positron