Solutions grumble – this apple is sour has 11 entries with similar clues
- nagGrumble
- logoApple's apple, for one
- moanGrumble
- whineGrumble
- grouchGrumbler
- grouseGame to make you grumble
- acanthusThistlelike shrub with spikes of flowers
- complainGrumble
- curmudgeonGrumbler
- sourcaddiesgrumblers left holding the bag?
- terrybutcherformer rangers defender who managed inverness caledonian thistle, 2009-13