The most common and most likely answer to this crossword clue is the 8 letter word ADHESION
I've seen this crossword clue in Independent
A
D
H
E
S
I
O
N
More clues leading to the result ADHESION
- Notice man's running to grab one purchase
- Grip had to change with racket drawn back
- One said originally to possess hard grip
- Cook had sound tips for purchase
- Grip hard racket the wrong way on advantage to American
- Tackiness of commercial featuring that bloke clutching Oscar
- Bond had criminal picked up – sound
- Bond‘s wound is on head
- Bond had fixed and sound returns
- He’s enthralled by a Canadian singer – that’s a sticking point
Buddy explains!

The straight part
We know that "Tackiness" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case tackiness = adhesion.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 ADHESION mean?
ADHESION noun- The ability of a substance to stick to an unlike substance.
- Persistent attachment or loyalty.
- An agreement to adhere.
- An abnormal union of surface by the formation of new tissue resulting from an inflammatory process.
- The binding of a cell to a surface or substrate.