Miss Marple finally visits Flanders (4)
I believe the answer is:
need
'miss' is the definition.
(I've seen this before)
'marple finally visits flanders' is the wordplay.
'finally' says to take the final letters.
'visits' indicates putting letters inside (visit can mean to go into).
'flanders' becomes 'ned' (I can't explain this - if you can you should give a lot more credence to this answer).
The last letter of 'marple' is 'e'.
'e' inserted inside 'ned' is 'NEED'.
Can you help me to learn more?
(Other definitions for need that I've seen before include "Necessity" , "Want - require(ment)" , "Exigency" , "Lack - demand" , "A condition" .)