Clue: Folk songs used regularly in remixed stereo links (4,5)
Answer: REEFKNOTS
Explanation: Definition: links
**F**ol**K**so**N**gs (regularly, ie every third letter) *in **(stereo) 
*I'm not keen on this clue, as, in my opinion, "regularly" is OK for every second letter, but it's beginning to stretch the boundaries a bit to use every third letter.