Crossword Genius

University invested in Lamb’s complete works? Praise the Lord! (8)

Ross

I believe the answer is:

alleluia

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

'praise the lord' is the definition.
The definition suggests a singular noun which matches the answer.

'university invested in lamb's complete works?' is the wordplay.
I cannot really understand how this works, but
'university' could be 'u' (abbreviation as in UMass) and 'u' is present in the answer.
'complete' could be 'all' (similar in meaning) and 'all' is found within the answer.
'lamb' could be 'elia' (pseudonym of essayist Charles Lamb) and 'elia' is present in the leftover letters.
No letters remain.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for alleluia that I've seen before include "God be praised" , "Interjection meaning praise to God, from Hebrew" , "Shout or song in praise of God" , "Liturgical shout of praise" , "Hebrew word meaning praise to God" .)

I've seen this clue in The Times.
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