The Sunday Crossword No 3007, Sunday 05 Aug 2018

ACROSS
1   Extended odds studied (6) SPREAD {SP}{READ}
4   Attacked since corruption of ideals (8) ASSAILED {AS}{IDEALS}*
10 Worker perhaps after middle of shift tucked into crusty item from bakery (9) CROISSANT {CRO{shIft}SS}{ANT}

11 Odd parts of tour, wrong, around capital city (5) TUNIS {ToUr}{SIN<=}
12 Skills shown by airman with observations filled with refinement, missing nothing (15) ACCOMPLISHMENTS {AC}{COM{PoLISH}MENTS}
13 United in hope, excited by revolutionary song giving joy (8) EUPHORIA {E{U}OPH*}{AIR<=}
15 Piece of furniture with flap, French article (5) TABLE {TAB}{LE}
18 Sea duck completely ignoring lake (5) OCEAN {O}{ClEAN}
19 Bring down remote-controlled aircraft outside the ground (8) DETHRONE {D{THE*}RONE}
21 Doctor's work with officer by law in charge (7,8) GENERAL PRACTICE {GENERAL} {PR{ACT}ICE}
24 Part of cargo, necessary element (5) ARGON [T]
25 Note adapted hose, old invention (9)  FALSEHOOD {FA}{HOSE+OLD}*
26 Admired English horse covering miles with energy (8) ESTEEMED {E}{STEE{M}{E}D}
27 Lack of interest in course occupying a year (6) APATHY {A}{PATH}{Y}

DOWN
1   Party, cold one, in country going north (6) SOCIAL {SO{C}{1}AL<=}
2   Basic reason to carouse, being tipsy (4,5) ROOT CAUSE*
3   Some tea's sampled? Here's region producing it (5) ASSAM [T]
5   Well, time is element in voyage, unknown (14) SATISFACTORILY {SA{T}{IS}{FACTOR}IL}{Y}
6   Issue raised during change in device measuring height (9) ALTIMETER {AL{EMIT<=}TER}
7   Policy with new material (5) LINEN {LINE}{N}
8   Calamity regarding temperature reported to be rising around south (8) DISASTER {RE}{T}{SA{S}ID}<=
9   Afraid full pace is out of order for long-distance runner (5,9) PAULA RADCLIFFE*
14 Fashionable doctor admitted to risk, disregarding first obstacle (9) HINDRANCE {cH{IN}{DR}ANCE}
16 Marsupial that has outlaw stifling utterance of surprise (9) BANDICOOT {BANDI{COO}T}
17 Fibre witch coated with red powder (8) ROUGHAGE {ROUG{HAG}E}
20 Prime tips for hastily covering a stain up (6) HEYDAY {A}{DYE} in {Ha...lY}
22 Dark time one of King Arthur's men reported (5) NIGHT (~knight)
23 Progress slowly beginning to concern and upset lord (5) CREEP {Co...n}{PEER<=}

GRID