The most common and most likely answer to this crossword clue is the 8 letter word TICKLING
I've seen this crossword clue in Independent
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More clues leading to the result TICKLING
Buddy explains!
The straight part
We know that "That’s funny" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case that’s funny = tickling.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.
What does TICKLING mean?
TICKLING verb- To touch repeatedly or stroke delicately in a manner which causes laughter, pleasure and twitching.
- To unexpectedly touch or stroke delicately in a manner which causes displeasure or withdrawal.
- (of a body part) To feel as if the body part in question is being tickled.
- To appeal to someone's taste, curiosity etc.
- To cause delight or amusement in.
- To feel titillation.
- To catch fish in the hand (usually in rivers or smaller streams) by manually stimulating the fins.
- To be excited or heartened.
- A sensation that tickles.
- That tickles