It's dangerous, I see, to take the opened purse out (8)
I believe the answer is:
perilous
'it's dangerous' is the definition.
(similar in meaning)
'to take the opened purse out' is the wordplay.
'to take' means one lot of letters goes inside another (inserted letters are taken in).
'the opened' becomes 'ilo' (I can't explain this - if you can you should believe this answer much more).
'out' indicates an anagram (out can mean wrong or inaccurate).
'purse' anagrammed gives 'perus'.
'ilo' placed into 'perus' is 'PERILOUS'.
'i see' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for perilous that I've seen before include "Extremely dangerous" , "Hazardous, dangerous" , "promising danger" , "Hazardous, menacing" , "Fraught with danger" .)