ACROSS
1 Polish engineer with strong desire to move ahead (6)
4 A stake taken by the French champions (8)
10 Cocktail that can be enjoyed on the beach? (3,6)
11 Single morning's deposit taken back to one in Paris (5)
12 Newton only used tough material (5)
13 Place where all are welcome is nothing to write home (4,5)
14 A day quickly becomes a season (7)
16 Looks left to right and right to left (4)
19 Fijians primarily eat pickled cheese (4)
21 Crazy Tuscan beaten up by English (7)
24 Leader having patent for one that can understand without hearing (9)
25 Zulu perhaps, of urban Tunisia (5)
26 Bit of love displayed by long lost relative (5)
27 Hands that are found in a butcher shop (4,5)
28 Burn exotic elm inside for a refining process (8)
29 Free deserter arrested by American soldiers (6)
DOWN
1 This is same for a family of wild male ants (4,4) LAST NAME
2 Blasting assorted animal accommodation (8) STABLING
3 Sick runner lost a bit of nip in second showing (5) RERUN
5 Lady engineer featured in media (7)
6 Point obtained by expansion of hollow screw (9)
7 Left's offensive is legal (6)
8 Instantaneous power extracted out of potato by a study (6)
9 Go back to answer (6) RETURN
15 Strain is apparent without oriental king (9)
17 Mac managed to swallow one layer (8)
18 Asks for soldiers seeking society (8) REQUESTS
20 A coalition worker's territory in India (7)
21 Conventional nationalist and upright man pulled down a couple of times (6)
22 Inundations of fodder around Lake Superior at first (6)
23 This is used to clean a parasite (6)
25 State's ban to cover revolutionary greeting (5)