Container, red, is covered in holes (8)
I believe the answer is:
cratered
'covered in holes' is the definition.
The definition suggests a past participle verb which matches the answer.
'container red' is the wordplay.
'container' becomes 'crate' (crate is a type of container).
'crate'+'red'='CRATERED'
'is' is the link.
Can you help me to learn more?
(Other definitions for cratered that I've seen before include "lacking a smooth surface" , "pitted" .)