1. Down - Not in favour of being a model after work (8) O?p?s???
13 Across - Insignificant person making the solving of a murder very difficult !
(6) ????d?
17 Across - They detect the regularities of beatings (12) ???t?o?c????
12 Down - Negotiate a rise for a second time and end cares, maybe (12)
?a???e?d
14 Down - One bird pecked another bird (7) ????e?n