Sewers sometimes require this decongestant, ultimately, long after parties (9,6)
I believe the answer is:
gathering stitch
'sewers sometimes require this decongestant ultimately' is the definition.
I know nothing about this answer so I can't tell whether this works.
'long after parties' is the wordplay.
I cannot quite understand how this works, but
'long' could be 'itch' (to long or itch for something is to desire it) and 'itch' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
Want a hint initially instead of a full solution?
Install my app