Become involved when it's stored by carpenter in toolshed (5,4)
I believe the answer is:
enter into
'become involved when' is the definition.
I can't judge whether this definition defines the answer.
'stored by carpenter in toolshed' is the wordplay.
'stored by' indicates a hidden word.
'ENTER INTO' is hidden within 'carpenter in toolshed'.
'it's' is the link.
Can you help me to learn more?
(Other definitions for enter into that I've seen before include "Form part of" , "Participate in" , "Take part in, conversation or agreement" .)