Barrier to cakes getting prepared without tip from Delia (8)
I believe the answer is:
stockade
'barrier' is the definition.
(I've seen this before)
'to cakes getting prepared without tip from delia' is the wordplay.
'getting prepared' is an anagram indicator.
'without' means one lot of letters goes inside another ('without' can be similar in meaning to 'outside').
'tip from' says to take the initial letters.
The first letter of 'delia' is 'd'.
'to'+'cakes'='tocakes'
'tocakes' with letters rearranged gives 'stockae'.
'stockae' placed around 'd' is 'STOCKADE'.
(Other definitions for stockade that I've seen before include "Defensive barrier of upright posts" , "Defensive fence of stout posts" , "Fortified enclosure" , "Wooden barrier" , "Cod steak consumed in enclosure as for military prisoners" .)