Fish and chips regularly dropped around, not a sausage (5)
I believe the answer is:
cisco
'fish' is the definition.
(cisco is a kind of fish)
'chips regularly dropped around not a sausage' is the wordplay.
'regularly dropped' means one should take alternating letters (letters removed at regular intervals).
'around' becomes 'c' (abbreviation for 'circa').
'not a sausage' becomes 'O' (informal term for nothing at all, so 0).
The alternating letters of 'chips' are 'cis'.
'cis'+'c'+'o'='CISCO'
'and' is the link.
(Other definitions for cisco that I've seen before include "Fish" , "Catch" , "western kid?" .)