Srictly, drunk left by closing (7)

I believe the answer is:

tightly

I'm a little stuck... Click here to teach me more about this clue!

'srictly' is the definition.
I can't tell whether this defines the answer.

'drunk left by closing' is the wordplay.
'drunk' becomes 'tight' (slang term).
'left' becomes 'l' (common abbreviation).
'closing' indicates one should take the final letters (the letter which ends or closes the word).
The last letter of 'by' is 'y'.
'tight'+'l'+'y'='TIGHTLY'

Can you help me to learn more?

(Other definitions for tightly that I've seen before include "In a close-fitting manner" , "Securely" .)

I've seen this clue in the Sydney Morning Herald.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.