African country stopping short a line of dancers (5)
I believe the answer is:
conga
'line of dancers' is the definition.
(conga line)
'african country stopping short a' is the wordplay.
'african country' becomes 'Congo' (country in Africa).
'stopping short' means to remove the last letter.
'congo' with its final letter taken away is 'cong'.
'cong'+'a'='CONGA'
(Other definitions for conga that I've seen before include "Party dance" , "Latin American "follow-my-leader" dance" , "What gets line moving rhythmically" , "Dance of 3 steps and a kick by people in single file" , "Latin American dance with three steps and a kick" .)