(Adds move to Derby)
June 8 (Reuters) - Aston Villa's record signing Darren Bent, released on a free transfer after four years, has signed for Derby County.
The 31-year-old spent the last four months of the season on loan at the Championship club, who missed out on a place in the promotion playoffs after finishing the campaign badly despite Bent's 12 goals in 17 appearances.
"Darren Bent is a proven goal-scorer and that was something he proved during his loan spell with the club last season," Derby's new head coach, Paul Clement, who has moved back to England from Real Madrid, told the club website (www.