Bit of improvisation required for getting into some countries (4)
I believe the answer is:
visa
'getting into some countries' is the definition.
I can't judge whether this defines the answer.
'bit of improvisation required' is the wordplay.
'bit of' says the answer is hidden in the clue.
'VISA' can be found hidden inside 'improvisation required'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for visa that I've seen before include "Addition to passport" , "Travel permit stamped in passport etc" , "Mark on passport" , "Travel document is required to enter Virginia" , "Endorsement made in a passport" .)