“Ta God” is, er a translation? (3,7)

I believe the answer is:

deo gratias

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'ta god is er a translation?' is the definition.
I can't tell whether this definition defines the answer.

'ta god is er a translation?' is the wordplay.
'translation?' indicates anagramming the letters (I've seen 'translation' mean this).
'ta'+'god'+'is'+'er'+'a'='tagodisera'
'tagodisera' is an anagram of 'DEO GRATIAS'.

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(Another definition for deo gratias that I've seen is " thank God".)

I've seen this clue in The Times.

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