More sterile, detailed Cleo - and Liz? Her husband's gone (9)

'more sterile' is the definition.

'detailed cleo and liz? her husband's gone' is the wordplay.
I cannot quite understand how this works, but
'and' could be 'n' (common abbreviation for 'and') and 'n' is present in the answer.
'her' could be 'clea' and 'clea' is found in the answer.
The remaining letters 'lier' is a valid word which might be clued in a way I don't understand.
This may be the basis of clue (or it may be nonsense).