Steps requiring two volunteers to lead private aid group (5)
I believe the answer is:
tango
'steps' is the definition.
(I've seen this before)
'two volunteers to lead private aid group' is the wordplay.
I cannot really understand how this works, but
'volunteers' could be 'ta' (abbreviation for Territorial Army) and 'ta' is located in the answer.
'lead' could be 'go' (synonyms) and 'go' is found within the answer.
A single letter 'n' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
'requiring' acts as a link.
Can you help me to learn more?
(Other definitions for tango that I've seen before include "Letter T in radio comms" , "Dance originating in Argentina" , "South American dance (for two?)" , "Steps" , "Dance originally from Buenos Aires" .)