Drained lake, every weed regularly pulled out (7)
I believe the answer is:
leached
'pulled out' is the definition.
The answer and definition can be both to do with motion as well as being past participle verbs.
Maybe you can see a link between them that I can't see?
'drained lake every weed regularly' is the wordplay.
'drained lake' becomes 'l' (geographical abbreviation. I am not sure about the 'drained' bit.).
'every' becomes 'each' (synonyms).
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
The alternate letters of 'weed' are 'ed'.
'l'+'each'+'ed'='LEACHED'
Can you help me to learn more?
(Another definition for leached that I've seen is " Cleared with water".)