Campion found in the hedge - or big garden, maybe (6,5)
I believe the answer is:
ragged robin
'campion' is the definition.
(I've seen this before)
'or big garden maybe' is the wordplay.
'maybe' is an anagram indicator.
'or'+'big'+'garden'='orbiggarden'
'orbiggarden' is an anagram of 'RAGGED-ROBIN'.
'found in the hedge' acts as a link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for ragged robin that I've seen before include "Common wild flower" , "Pink-flowered campion" , "garden feature?" .)