Across
1Iron commitment ultimately put into state security (6)
4Correct answer about cleric (8)
10Mineral starts to appear blue and silver in turn (9)
11Feeling essential to brass ensemble (5)
12Text’s aims lie in unravelling philosophy (14)
14Charges to screen large fights (5)
16Trace idea reforms wipe out (9)
17State endless desire, then deceive with misdeed (9)
19Joint work about semiaquatic mammal (5)
21Opposing action from token ruler? (14)
24Notice colour around snake (5)
25Queen with sign joined by secretary in court before artist (9)
26Settle with noble publican (8)
27Performed unusually adeptly, short of time (6)
Down
1Reduced depth in amendment of second law (6-4)
2Delicate piece of cloth in folder (7)
3Child, when tucked in, warm (5)
5Character at home with a burden accepting new one? (8,6)
6Comedian finally among us, mischievous kind (9)
7Inability to remember bad men dividing continent (7)
8Always this crossword? Not half (4)
9Painter showing variety of planet’s scenery (7,7)
13Earlier group full of energy loudly followed by rising idol (10)
15Rogue doctor absorbed by working on clues (9)
18Today, surrounded by signs of approval, climbing mountain (7)
20Quiet duck, truly wild fowl (7)
22Shock upset father and friend (5)
23 End story in hearing (4)
