Ship round lake in disordered heap (7)
I believe the answer is:
clutter
'disordered heap' is the definition.
'clutter' can be an answer for 'heap' (I have seen 'Disorderly heap ' mean 'clutter' so perhaps 'heap' could also mean 'clutter'). I'm unsure of the 'disordered' bit.
'ship round lake' is the wordplay.
'ship' becomes 'cutter' (type of ship).
'round' indicates putting letters inside.
'lake' becomes 'L' (geographical abbreviation).
'cutter' placed around 'l' is 'CLUTTER'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for clutter that I've seen before include "Untidy state" , "Confused muddle of things" , "Clog up" , "Untidiness" , "Untidy accumulation of objects" .)