One obtained from a garden centre, especially? (4)
I believe the answer is:
tree
'one' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'obtained from a garden centre especially?' is the wordplay.
'obtained from' indicates the answer is hidden within the clue.
'TREE' is hidden in the letters of 'garden centre especially'.
Can you help me to learn more?
(Other definitions for tree that I've seen before include "Recently named grouping of rogue states" , "Large woody plant (4)" , "Birch, say" , "eg Lime" , "Large shrub; family line" .)