Director's visit cut short, difficult personal problem having intruded (12)
I believe the answer is:
attenborough
'director's visit' is the definition.
The definition suggests a singular noun which matches the answer.
'cut short difficult personal problem having intruded' is the wordplay.
I cannot quite understand how this works, but
'difficult' could be 'rough' (similar in meaning) and 'rough' is located in the answer.
'personal problem' could be 'bo' (informal abbreviation for body odour) and 'bo' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for attenborough that I've seen before include "David -, zoologist, TV presenter" , "Member of 7 [ORDER OF MERIT]" .)