### Clue: In match, start to play with clubs in a calculated way (10)
### Answer: TACTICALLY 
 ### Explanation: Definition: in a calculated way
 TALLY(to match;to correspond) **containing**(In …) [ ACT I(which looks like Act 1;the start to a play on stage) **plus**(with) C(abbrev. for the suit of clubs in card games) ].