Chopped North Sea ide for a liquorice flavour (7)
I believe the answer is:
aniseed
'a liquorice flavour' is the definition.
(I've seen this before)
'chopped north sea ide' is the wordplay.
'chopped' is an anagram indicator (letters chopped or smashed up).
'north' becomes 'N' (abbreviation).
'n'+'sea'+'ide'='nseaide'
'nseaide' is an anagram of 'ANISEED'.
'for' is the link.
(Other definitions for aniseed that I've seen before include "Cake flavouring" , "taste of Pernod, perhaps?" , "Die sane (anag)" , "Strong flavouring often used in sweets" , "Natural flavouring" .)