The most common and most likely answer to this crossword clue is the 4 plus 5 letter word FLIP CHART
I've seen this crossword clue in The Daily Telegraph
F
L
I
P
C
H
A
R
T
More clues leading to the result FLIP CHART
- Become excited by daily end to broadcast – part of a presentation?
- Aid to presentation for Pam
- Frivolous talk about Republican in part of presentation?
- Over-smart church sculptures? Such may be seen in lecture
- Insolence, interrupting fine talk about Republican in part of presentation
- Turn over map to find pad
Buddy explains!

The straight part
We know that "Such may be seen in lecture" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case such may be seen in lecture = flip chart.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.