Getting drunk is not free (5)

I believe the answer is:

tight

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

'getting drunk' is the definition.
'tight' can be an answer for 'drunk' (I've seen this before). I am unsure of the 'getting' bit.

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for tight that I've seen before include "Drunk - a near thing!" , "Snug" , "corked?" , "Tense; drunk" , "Closely constrained, constricted" .)

I've seen this clue in The Globe and Mail.

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.