Continue to show a certain undergarment, a German number (3,2,3,1,6)
I believe the answer is:
air on the g string
'a german number' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'continue to show a certain undergarment' is the wordplay.
I cannot quite understand how this works, but
'continue' could be 'on' (I've seen this in other clues) and 'on' is found within the answer.
'show' could be 'air' (both can mean broadcast) and 'air' is found in the answer.
'undergarment' could be 'gstring' (I have seen 'Skimpy undergarment ' mean 'g-string' so perhaps 'undergarment' could also mean 'g-string') and 'gstring' is found within the answer.
The remaining letters 'the' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?