Johnson joined Derby from Norwich City on deadline day, and he has immediately been given a place in the Rams' starting line-up.
The powerful midfielder has impressed hugely so far, and Clement believes that he is the complete performer.
Clement: "@BradJohnson15 has hit the ground running here. He can do everything. He has a presence and leads by example on and off the pitch"— Derby County (@dcfcofficial) October 20, 2015
Johnson's departure from Norwich disappointed many of the Canaries' supporters, as he proved to be so vital for them last season.
The 28-year-old was one of Norwich's key men as they earned promotion to the Premier League, and he is proving his class again at Derby.
Johnson has scored twice in his first six appearances for the Rams, and he is yet to taste defeat since moving to the Midlands club.
Johnson's arrival at Derby has coincided with their best run of form over the season so far, and Clement's side are now sitting in the play-off places in the Championship.