Veggie turned up around middle of Ronnie Barker's house (6)
I believe the answer is:
kennel
'barker's house' is the definition.
'kennel' can be an answer for 'house' (thesaurus). I'm unsure of the 'barker's' bit.
'veggie turned up around middle of ronnie' is the wordplay.
'veggie' becomes 'leek' (leek is a kind of veggie).
'turned up' is a reversal indicator.
'around' indicates putting letters inside.
'middle of' says to take the centre.
The middle of 'ronnie' is 'nn'.
'leek' reversed gives 'keel'.
'keel' placed around 'nn' is 'KENNEL'.
Can you help me to learn more?
(Other definitions for kennel that I've seen before include "Canine home" , "Dog's abode" , "housing for boxer, say" , "Snoopy slept atop it" , "A dog's home, usually outside house" .)