Run from long-legged bird, finding bamboo (4)
I believe the answer is:
cane
'bamboo' is the definition.
(thesaurus)
'run from long-legged bird' is the wordplay.
'run' becomes 'r' (cricket abbreviation).
'from' suggests deleting specific letters.
'long-legged bird' becomes 'crane' (I've seen this before).
'crane' with 'r' taken out is 'CANE'.
'finding' is the link.
(Other definitions for cane that I've seen before include "Slender support, for 32 across say" , "Stick; thrash" , "e.g. Bamboo stem" , "Bamboo, sugar, stem" , "Bamboo or rattan" .)