Supports without spur in greenhouse containers (4)
I believe the answer is:
pots
'greenhouse containers' is the definition.
'pots' can be an answer for 'containers' (pot is a kind of container). I'm not sure about the 'greenhouse' bit.
'supports without spur' is the wordplay.
'without' indicates named letters should be taken away.
'supports' with 'spur' taken out is 'POTS'.
'in' is the link.
Can you help me to learn more?
(Other definitions for pots that I've seen before include "Gets (a ball) into pocket" , "Preserves" , "Ceramics; pockets (ball)" , "Containers; oodles" , "Cooking utensils" .)