Lovatts Holiday Col 90 Cryptic

74a Choose underwear. ?I?N???E?S PICNICKERS
24d Briefly stopped function. ?A?S?D PAUSED
49d More avid than funeral wailer. ?E?N?? KEENER
50d Select for duty. ?N?I?? ENLIST

It's much more helpful if you put the entire clue as not everyone has the puzzle.

21a It's good in France. Utilises extra treats. BONUSES
53a Are you involved in a sale generally? (2,1,4) AS A RULE
66a Synthetic fabric or any changes RAYON
74a Choose underwear, say, for outdoor diners. PICNICKERS
24d Briefly stopped function in residence. PAUSED
49d More avid than funeral wailer KEENER
50d Select for duty as roadway symbol ASSIGN

Good point. I guessed BONUSES but could not justify it from the given information.

Thank you Fresco, I have rayon for 66a and assign for 50d so enlist won,t fit? But with enlist 53a on a role would fit? Beverley.

Thank you, with the one or two more I managed to work out you have completed the board. Very kind regards Beverley.

With cryptics in particular one word, or even just one letter, can make all the difference.