Crossword Genius

Lack of a defence for former partner consumed by UNESCO collection (2,6)

Ross

I believe the answer is:

no excuse

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

'lack of a defence' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'former partner consumed by unesco collection' is the wordplay.
'former partner' becomes 'ex'.
'consumed by' is an insertion indicator.
'collection' indicates anagramming the letters (the same collection of letters).
'unesco' anagrammed gives 'nocuse'.
'ex' placed into 'nocuse' is 'NO EXCUSE'.

'for' acts as a link.

Can you help me to learn more?

I've seen this clue in the Irish Times and the Irish Times (Crosaire).
Want a hint initially instead of a full solution? Install my app