Navy brought in new look for navy emblem (3,6)
I believe the answer is:
red ensign
'navy emblem' is the definition.
The definition suggests a singular noun which matches the answer.
'navy brought in new look' is the wordplay.
'navy' becomes 'N' (common abbreviation eg in RN Royal Navy).
'brought in' means one lot of letters goes inside another.
'new look' becomes 'redesign' (I've seen this before).
'n' placed inside 'redesign' is 'RED ENSIGN'.
'for' is the link.
Can you help me to learn more?
(Other definitions for red ensign that I've seen before include "Flag for ships" , "Sailor's flag" , "It will fly at sea" , "Flag flown by the British Merchant Navy" , "Shipping flag" .)