Thanks R I am sure you are correct but this rather messes up my last but one clue that I thought started with an S
Pike lure, specially weighted so that action is imparted via the (short, stiff) rod (8)
J???K?I? third letter maybe an 'R'
There is such a thing as a Jerkbait lure but the 'K' I have is not the forth letter but the fifth?