Taking care of people who dash over to perform (7)
I believe the answer is:
nursing
'taking care of people who' is the definition.
'nursing' can be an answer for 'taking care of' (I've seen this in another clue). I am unsure of the rest of the definition.
'dash over to perform' is the wordplay.
'dash' becomes 'nur' (I can't explain this - if you can you should believe this answer much more).
'over' means one lot of letters go next to another (in a down clue, some letters go over others).
'to perform' becomes 'sing' (to perform a song).
'nur'+'sing'='NURSING'
Can you help me to learn more?
(Other definitions for nursing that I've seen before include "sister's career" , "Caring profession" , "Patient care" , "now a graduate profession" , "Feeding baby" .)