Cryptic 2626

[Glanrhos]

24a - Material like mustard put on indian food (7) n???e?n
18d - Want something heart-warming (3,5) a?s ???e

Thanks for some help together with an explanation

[ubasses]

nankeen

[kayakamina]

nan keen

absence

[Calibax]

24a Nan keen

[Glanrhos]

Thanks ubasses, Calibax and especially kayakamina. I have now worked out from the clue how you arrived at the answer.