Thank you rad and others for the hints but I am getting nowhere fast. I assume the four letter word starts with W because of both the definition gleaned from the clues and answers and the golf connotation of the title. I also assume that once the seven examples are highlighted they will form the four letters of that word. The trouble is that I can't see anything apart from the 7 letter one beginning with H in the bottom right quarter that fits my assumption.
Alwayspuzzled, the 7-letter word beginning with H will have another one joined to it, so that it forms the last letter of the word you mentioned. The second one is far less well-known. The examples in the square to the left of that one are more obvious - and you'll know what shape you want. The examples don't all go in the same direction- some are clockwise, some aren't.
Despite all your sterling hints, I am still floundering with the NE corner.Want 4d to be Wham but can't parse it & 5,7 & 8d I'm not seeing at all. Also, even though I am fairly sure I have the right words out (quite few are missing} I can't make h or t of what I am looking for. Thanks in advance to all.