Terrible two baulk a public stroll (9)
I believe the answer is:
walkabout
'public stroll' is the definition.
'walkabout' can be an answer for 'stroll' (walkabout is a kind of stroll). I'm unsure of the 'public' bit.
'terrible two baulk a' is the wordplay.
'terrible' is an anagram indicator.
'two'+'baulk'+'a'='twobaulka'
'twobaulka' with letters rearranged gives 'WALKABOUT'.
Can you help me to learn more?
(Other definitions for walkabout that I've seen before include "to stretch his legs" , "Informal perambulation" , "Period of wandering by Australian aboriginal" , "Informal stroll" , "opportunity to meet people" .)