Dance company not available to tour Greece initially (5)
I believe the answer is:
conga
'dance' is the definition.
(conga is a type of dance)
'company not available to tour greece initially' is the wordplay.
'company' becomes 'co' (abbreviation).
'not available' becomes 'na' (abbreviation).
'to tour' indicates putting letters inside (to tour can mean to go around).
'initially' suggests taking the first letters.
The initial letter of 'greece' is 'g'.
'na' enclosing 'g' is 'nga'.
'co'+'nga'='CONGA'
(Other definitions for conga that I've seen before include "Latin American dance performed in single file" , "Line-dancing" , "Long-line dance" , "Dance performed in line" , "What gets line moving rhythmically" .)