Lurid sight - Bob struggling to restrain large family pet? (7,7)
I believe the answer is:
british bulldog
'family pet?' is the definition.
(breed of dog)
'lurid sight bob struggling to restrain large' is the wordplay.
'struggling' indicates anagramming the letters.
'to restrain' means one lot of letters goes inside another.
'large' becomes 'L' (eg in clothes sizes).
'lurid'+'sight'+'bob'='luridsightbob'
'luridsightbob' with letters rearranged gives 'britishbuldog'.
'britishbuldog' enclosing 'l' is 'BRITISH BULLDOG'.
(Another definition for british bulldog that I've seen is " Children's game - our national mascot?".)