7 Across - Try to be useful here (10) ***C*E*H*M 15 Across - Old country is like Asian country (7) *****I* 21 Across - Large city's relative securityis curtailed (6) *****I 1 Down - Watts shortly about to pass out (5) ***O* 13 Down - Doubtful, so Saudi-American is diligent (9) ***I***U* 14 Down - Return a shot following very big curve (9) ***E***L* ~~~ definitely not my day today, any help gratefully accepted.