Chant stopped by goal, poor result of on-field foul? (7-3)

'result of on-field foul?' is the definition.
(a footballer might be sent off for a foul)

'chant stopped by goal poor' is the wordplay.
'chant' becomes 'sing' (I've seen this before).
'stopped by' means one lot of letters goes inside another (I've seen this in other clues).
'goal' becomes 'end' (synonyms).
'poor' becomes 'off' (both can mean low quality).
'sing' going around 'end' is 'sending'.
'sending'+'off'='SENDING-OFF'