{{explanation}}
Single Circle RR, all face in, W on M's right

1-
: All C advance to centre and retire ; repeat
9-
: All W advance to centre, clap and retire ; All M advance to centre, turn and advance to partners
17-
: All swing partners into promhold facing cclw
25-
: All C promenade cclw to reform original circle

{{explanation}}
Note. Variant with progression:

13-
: All M advance to centre, turn and advance to cnr (W on M's left in original circle)
17-
: All swing new partners into promhold facing cclw