Lots of dogs but no lead (6)
I believe the answer is:
oodles
'lots of' is the definition.
(informal term for a large amount)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for oodles that I've seen before include "Plenty" , "Tons, scads" , "Large indefinite number" , "Very great amount (colloq.)" , "Bags" .)