### Clue: Bridge player initially breaking into clubs — I say, hearts overlooked! (10)
### Answer: PONTICELLO 
 ### Explanation: Definition: Bridge
definition: the bridge on a stringed instrument such as a violin
 P[layer]; plus (into)* with "breaking" as anagrind"; plus C (clubs); plus [h]ELLO=exclamation of surprise='I say!' minus H (hearts)