It’s slow to glide round the end of the garden (5)
I believe the answer is:
snail
'it's slow' is the definition.
I can't judge whether this definition defines the answer.
'glide round the end of the garden' is the wordplay.
'glide' becomes 'sail' (I can't explain this - if you can you should believe this answer much more).
'round' means one lot of letters goes inside another.
'the end of' suggests the final letters.
The last letter of 'garden' is 'n'.
'sail' placed around 'n' is 'SNAIL'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for snail that I've seen before include "Proverbially slow moving mollusc" , "Mollusc with spiral shell" , "Slow slithery mollusc" , "dawdler" , "trailer" .)