Walk between the plants (7)
I believe the answer is:
pergola
'walk between the plants' is the definition.
I can't tell whether this definition defines the answer.
'walk between the plants' is the wordplay.
'walk' becomes 'go'.
'between' means one lot of letters goes inside another.
'the plants' becomes 'perla' (I can't explain this - if you can you should believe this answer much more).
'go' going into 'perla' is 'PERGOLA'.
Can you help me to learn more?
(Other definitions for pergola that I've seen before include "Framework for climbers" , "Arch for garden plants" , "Structure for climbers" , "Garden support" , "Garden archway" .)