Just what you want in central Lewisham (4)
I believe the answer is:
wish
'just what you want' is the definition.
I can't judge whether this definition defines the answer.
'in central lewisham' is the wordplay.
'in' says the answer is hidden in the clue.
'WISH' can be found hidden inside 'central lewisham'.
Can you help me to learn more?
(Other definitions for wish that I've seen before include "prayer" , "Request - yen" , "bid" , "Express a desire (upon a star?)" , "Want (to do something)" .)