Admiral’s familiar name for part of London (6)
I believe the answer is:
benbow
'admiral's' is the definition.
(I have seen 'Old admiral' mean 'benbow' so perhaps 'admiral' could also mean 'benbow')
'familiar name for part of london' is the wordplay.
I cannot really see how this works, but
'name' could be 'ben' and 'ben' is found within the answer.
'part' could be 'bow' (I have seen 'Part of London' mean 'bow' so perhaps 'part' could also mean 'bow') and 'bow' is located in the answer.
This accounts for all the letters.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for benbow that I've seen before include "Old admiral" , "Admiral of inn in 12 2" , "Admiral of Treasure Island inn" .)