Maybe pumps around liner fouled beaches etc (10)
I believe the answer is:
shorelines
'maybe pumps around liner fouled beaches etc' is the definition.
I can't judge whether this definition defines the answer.
'around liner fouled beaches etc' is the wordplay.
I cannot really see how this works, but
'around' could be 'o' (I've seen this in other clues) and 'o' is located in the answer.
an anagram of 'liner' is 'relin' which is located in the answer.
The remaining letters 'shes' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Another definition for shorelines that I've seen is " Land edges".)