A routine in local area network recalled as normal (7)
I believe the answer is:
natural
'normal' is the definition.
('natural' can be similar in meaning to 'normal')
'a routine in local area network recalled' is the wordplay.
'routine' becomes 'rut' (rut is a kind of routine).
'in' is an insertion indicator.
'local area network' becomes 'lan' ('LAN' can be a synonym of 'local area network').
'recalled' shows that the letters should be reversed in order.
'a'+'rut'='arut'
'arut' inserted inside 'lan' is 'larutan'.
'larutan' written backwards gives 'NATURAL'.
'as' is the link.
(Other definitions for natural that I've seen before include "Unaffected or earthy" , "Not made; off-white" , "character on the staff" , "Additive-free" , "Not disguised" .)