Park attendant with cry of annoyance outside glass house (8)
I believe the answer is:
orangery
'park attendant' is the definition.
The definition suggests a singular noun which matches the answer.
'cry of annoyance outside glass house' is the wordplay.
I cannot really see how this works, but
'of' could be 'o' and 'o' is present in the answer.
'annoyance' could be 'anger' (I've seen this before) and 'anger' is found within the answer.
This explanation may well be incorrect...
'with' is the link.
Can you help me to learn more?
(Other definitions for orangery that I've seen before include "Greenhouse for fruit bushes" , "Place for growing fruit in cool climates" , "Type of conservatory" , "where fruit trees grow" , "glasshouse" .)