Leads for microphones and sophisticated headphones produced by Pulp (4)
I believe the answer is:
mash
'pulp' is the definition.
(I know this)
'leads for microphones and sophisticated headphones' is the wordplay.
'leads for' indicates taking the first letters.
The first letters of 'microphones and sophisticated headphones' is 'MASH'.
'produced by' acts as a link.
(Other definitions for mash that I've seen before include "Pureed potato" , "Food for horses" , "Ground potatoes" , "Creamed potatoes" , "food for animals" .)