Old man going round with forest creature (5)
I believe the answer is:
panda
'forest creature' is the definition.
'panda' can be an answer for 'creature' (panda is a type of creature). I am unsure of the 'forest' bit.
'old man going round with' is the wordplay.
'old man' becomes 'pa' (both can mean someone's father).
'going round' is an insertion indicator (some letters go around others).
'with' becomes 'and'.
'pa' placed around 'and' is 'PANDA'.
Can you help me to learn more?
(Other definitions for panda that I've seen before include "Asian animal" , "Large bear from the bamboo forests of China and Tibet" , "Endangered animal" , "See 17" , "Police car" .)