Guide may see international in bed (5)
I believe the answer is:
pilot
'guide' is the definition.
(pilot can mean a navigator)
'international in bed' is the wordplay.
'international' becomes 'i' (abbreviation eg in IMF).
'in' is an insertion indicator.
'bed' becomes 'plot' (a bed or plot of land).
'i' going within 'plot' is 'PILOT'.
'may see' is the link.
(Other definitions for pilot that I've seen before include "Test or trial (project or programme)" , "Captain of plane or boat" , "Guide (e.g. of ship through harbour)" , "Ship's guide" , "Flier of aircraft" .)