Visit James Bond's boss, it would appear (4)
I believe the answer is:
seem
'appear' is the definition.
(I know that appear can be written as seem)
'visit james bond's boss' is the wordplay.
'visit' becomes 'see' (synonyms).
'james bond's boss' becomes 'M' (M is the head of MI6 in the James Bond series).
'see'+'m'='SEEM'
'it would' acts as a link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for seem that I've seen before include "Appear to the eye" , "Come across as" , "Appear, look" , "Appear, give impression of being" .)