At end of bar two merry men put ale in teat (15)

I believe the answer is:

antepenultimate

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'at end of bar two' is the definition.
I can't tell whether this defines the answer.

'merry men put ale in teat' is the wordplay.
'merry' indicates anagramming the letters (merry can mean drunk).
'men'+'put'+'ale'+'in'+'teat'='menputaleinteat'
'menputaleinteat' is an anagram of 'ANTEPENULTIMATE'.

Can you help me to learn more?

(Other definitions for antepenultimate that I've seen before include "like this across clue" , "third from last" .)

I've seen this clue in The Independent.

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