Welcome performance around church piano (6)
I believe the answer is:
accept
'welcome' is the definition.
(I've seen this before)
'performance around church piano' is the wordplay.
'performance' becomes 'act' (act is a kind of performance**).
'around' indicates putting letters inside.
'church' becomes 'ce' (abbreviation for Church of England).
'piano' becomes 'p'.
'ce'+'p'='cep'
'act' going around 'cep' is 'ACCEPT'.
(Other definitions for accept that I've seen before include "Regard with approval; take on" , "Take on (responsibility)" , "Concede" , "Admit into a group" , "Consider or hold as true" .)