Join flavouring with lamb, initially (6)
I believe the answer is:
splice
'join' is the definition.
(I know that splice is a type of join)
'flavouring with lamb initially' is the wordplay.
'flavouring' becomes 'spice' (spice is a kind of flavouring).
'with' means one lot of letters goes inside another.
'lamb initially' becomes 'l' (I am not sure about this - if you are sure you should believe this answer much more).
'spice' placed around 'l' is 'SPLICE'.
Can you help me to learn more?
(Other definitions for splice that I've seen before include "Join the ends by weaving the strands together" , "Join rope ends together by weaving" , "Join in marriage (informal)" , "Weave (strands of rope) together" , "Wed" .)