Goes off using oars without power (6)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

[P]addles. I'm not sure if the p{ower} is being removed from "using oars" (which would would seem to have the wrong conjugation for paddles) or "goes off using oars", which would leave the "goes off" as both the definition and part of the subsidiary clue.