Whilst family history always involves some detective work giving dates usually helps as does putting names in the heading + also a brief synopsis of what you already know.

The only marriage I'm aware of was at Lonan 17231126 - they had one child margt (marked Laxey in reg) before wife Mathy's possible burial Lonan 17250421 - however I can't see a 2nd marr for him nor any will for her -
possibly his will 1753 - [bur Lon 17530131]d 16 jan 1753;wife margt exex;son phinlo(heir),robt other son;daus ellinor,isabel,mary;some agreement as widow & eldest son agree that effects don't cover bequests;

but there is another Finlo Clague will 1729 I've not looked at yet and there are a couple of other Finlo clagues around at this time