German in docking area left on the edge (8)
I believe the answer is:
marginal
'on the edge' is the definition.
(I've seen this before)
'german in docking area left' is the wordplay.
'german' becomes 'g' (abbreviation).
'in' indicates putting letters inside.
'docking area' becomes 'marina' (I am not sure about this - if you are sure you should believe this answer much more).
'left' becomes 'l' (common abbreviation).
'g' going into 'marina' is 'margina'.
'margina'+'l'='MARGINAL'
Can you help me to learn more?
(Other definitions for marginal that I've seen before include "Borderline" , "Alarming (anag) - too small to matter" , "unsafe seat" , "On the edges of" , "on border" .)