Pick fruit etcetera regularly brought in (8)
I believe the answer is:
plectrum
'pick' is the definition.
(a guitar pick)
'fruit etcetera regularly brought in' is the wordplay.
'fruit' becomes 'plum' (plum is a kind of fruit).
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
'brought in' indicates putting letters inside.
The alternate letters of 'etcetera' are 'ectr'.
'plum' placed around 'ectr' is 'PLECTRUM'.
(Other definitions for plectrum that I've seen before include "Guitarist's implement" , "Device for playing guitar" , "Guitar pick" , "Implement for plucking guitar strings" , "It's used to pluck guitar strings" .)